feat(curriculum): restore seed + solution to Chinese (#40683)

* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/access-array-data-with-indexes.md

@@ -4,6 +4,7 @@ title: 通过索引访问数组中的数据
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cBZQbTz'
 forumTopicId: 16158
+dashedName: access-array-data-with-indexes
 ---
 
 # --description--
@@ -60,5 +61,26 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myArray !== "undefined" && typeof myData !== "undefined"){(function(y,z){return 'myArray = ' + JSON.stringify(y) + ', myData = ' + JSON.stringify(z);})(myArray, myData);}
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [50,60,70];
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myArray = [50,60,70];
+var myData = myArray[0];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/access-multi-dimensional-arrays-with-indexes.md

@@ -4,6 +4,7 @@ title: 使用索引访问多维数组
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/ckND4Cq'
 forumTopicId: 16159
+dashedName: access-multi-dimensional-arrays-with-indexes
 ---
 
 # --description--
@@ -48,5 +49,27 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myArray !== "undefined"){(function(){return "myData: " + myData + " myArray: " + JSON.stringify(myArray);})();}
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [[1,2,3], [4,5,6], [7,8,9], [[10,11,12], 13, 14]];
+
+// Only change code below this line
+var myData = myArray[0][0];
+```
+
 # --solutions--
 
+```js
+var myArray = [[1,2,3],[4,5,6], [7,8,9], [[10,11,12], 13, 14]];
+var myData = myArray[2][1];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/accessing-nested-arrays.md

@@ -4,6 +4,7 @@ title: 访问嵌套数组
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cLeGDtZ'
 forumTopicId: 16160
+dashedName: accessing-nested-arrays
 ---
 
 # --description--
@@ -53,5 +54,70 @@ assert(secondTree === 'pine');
 assert(/=\s*myPlants\[1\].list\[1\]/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(x) {
+  if(typeof x != 'undefined') {
+    return "secondTree = " + x;
+  }
+  return "secondTree is undefined";
+})(secondTree);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myPlants = [
+  {
+    type: "flowers",
+    list: [
+      "rose",
+      "tulip",
+      "dandelion"
+    ]
+  },
+  {
+    type: "trees",
+    list: [
+      "fir",
+      "pine",
+      "birch"
+    ]
+  }
+];
+
+// Only change code below this line
+
+var secondTree = ""; // Change this line
+```
+
 # --solutions--
 
+```js
+var myPlants = [
+  {
+    type: "flowers",
+    list: [
+      "rose",
+      "tulip",
+      "dandelion"
+    ]
+  },
+  {
+    type: "trees",
+    list: [
+      "fir",
+      "pine",
+      "birch"
+    ]
+  }
+];
+
+// Only change code below this line
+
+var secondTree = myPlants[1].list[1];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/accessing-nested-objects.md

@@ -4,6 +4,7 @@ title: 访问嵌套对象
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cRnRnfa'
 forumTopicId: 16161
+dashedName: accessing-nested-objects
 ---
 
 # --description--
@@ -47,5 +48,51 @@ assert(gloveBoxContents === 'maps');
 assert(/=\s*myStorage\.car\.inside\[\s*("|')glove box\1\s*\]/g.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(x) { 
+  if(typeof x != 'undefined') { 
+    return "gloveBoxContents = " + x;
+  }
+  return "gloveBoxContents is undefined";
+})(gloveBoxContents);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myStorage = {
+  "car": {
+    "inside": {
+      "glove box": "maps",
+      "passenger seat": "crumbs"
+     },
+    "outside": {
+      "trunk": "jack"
+    }
+  }
+};
+
+var gloveBoxContents = undefined; // Change this line
+```
+
 # --solutions--
 
+```js
+var myStorage = {
+  "car":{
+    "inside":{
+      "glove box":"maps",
+      "passenger seat":"crumbs"
+    },
+    "outside":{
+      "trunk":"jack"
+    }
+  }
+};
+var gloveBoxContents = myStorage.car.inside["glove box"];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/accessing-object-properties-with-bracket-notation.md

@@ -4,6 +4,7 @@ title: 通过方括号访问对象属性
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cBvmEHP'
 forumTopicId: 16163
+dashedName: accessing-object-properties-with-bracket-notation
 ---
 
 # --description--
@@ -63,5 +64,38 @@ assert(drinkValue === 'water');
 assert(code.match(/testObj\s*?\[('|")[^'"]+\1\]/g).length > 1);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(a,b) { return "entreeValue = '" + a + "', drinkValue = '" + b + "'"; })(entreeValue,drinkValue);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var testObj = {
+  "an entree": "hamburger",
+  "my side": "veggies",
+  "the drink": "water"
+};
+
+// Only change code below this line
+
+var entreeValue = testObj;   // Change this line
+var drinkValue = testObj;    // Change this line
+```
+
 # --solutions--
 
+```js
+var testObj = {
+  "an entree": "hamburger",
+  "my side": "veggies",
+  "the drink": "water"
+};
+var entreeValue = testObj["an entree"];
+var drinkValue = testObj['the drink'];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/accessing-object-properties-with-dot-notation.md

@@ -4,6 +4,7 @@ title: 通过点符号访问对象属性
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cGryJs8'
 forumTopicId: 16164
+dashedName: accessing-object-properties-with-dot-notation
 ---
 
 # --description--
@@ -59,5 +60,39 @@ assert(shirtValue === 'jersey');
 assert(code.match(/testObj\.\w+/g).length > 1);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(a,b) { return "hatValue = '" + a + "', shirtValue = '" + b + "'"; })(hatValue,shirtValue);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var testObj = {
+  "hat": "ballcap",
+  "shirt": "jersey",
+  "shoes": "cleats"
+};
+
+// Only change code below this line
+
+var hatValue = testObj;      // Change this line
+var shirtValue = testObj;    // Change this line
+```
+
 # --solutions--
 
+```js
+var testObj = {
+  "hat": "ballcap",
+  "shirt": "jersey",
+  "shoes": "cleats"
+};
+
+var hatValue = testObj.hat;
+var shirtValue = testObj.shirt;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/accessing-object-properties-with-variables.md

@@ -4,6 +4,7 @@ title: 通过变量访问对象属性
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cnQyKur'
 forumTopicId: 16165
+dashedName: accessing-object-properties-with-variables
 ---
 
 # --description--
@@ -79,5 +80,38 @@ assert(!code.match(/player\s*=\s*"|\'\s*Montana\s*"|\'\s*;/gi));
 assert(/testObj\s*?\[\s*playerNumber\s*\]/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof player !== "undefined"){(function(v){return v;})(player);}
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var testObj = {
+  12: "Namath",
+  16: "Montana",
+  19: "Unitas"
+};
+
+// Only change code below this line
+
+var playerNumber;       // Change this line
+var player = testObj;   // Change this line
+```
+
 # --solutions--
 
+```js
+var testObj = {
+  12: "Namath",
+  16: "Montana",
+  19: "Unitas"
+};
+var playerNumber = 16;
+var player = testObj[playerNumber];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/add-new-properties-to-a-javascript-object.md

@@ -4,6 +4,7 @@ title: 给对象添加新属性
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cQe38UD'
 forumTopicId: 301169
+dashedName: add-new-properties-to-a-javascript-object
 ---
 
 # --description--
@@ -38,5 +39,36 @@ assert(myDog.bark !== undefined);
 assert(!/bark[^\n]:/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return z;})(myDog);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myDog = {
+  "name": "Happy Coder",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["freeCodeCamp Campers"]
+};
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myDog = {
+  "name": "Happy Coder",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["freeCodeCamp Campers"]
+};
+myDog.bark = "Woof Woof";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/add-two-numbers-with-javascript.md

@@ -4,6 +4,7 @@ title: 加法运算
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cM2KBAG'
 forumTopicId: 16650
+dashedName: add-two-numbers-with-javascript
 ---
 
 # --description--
@@ -38,5 +39,22 @@ assert(sum === 20);
 assert(/\+/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return 'sum = '+z;})(sum);
+```
+
+## --seed-contents--
+
+```js
+var sum = 10 + 0;
+```
+
 # --solutions--
 
+```js
+var sum = 10 + 10;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/adding-a-default-option-in-switch-statements.md

@@ -4,6 +4,7 @@ title: 在 Switch 语句中添加默认选项
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c3JvVfg'
 forumTopicId: 16653
+dashedName: adding-a-default-option-in-switch-statements
 ---
 
 # --description--
@@ -85,5 +86,43 @@ assert(switchOfStuff('string-to-trigger-default-case') === 'stuff');
 assert(code.match(/break/g).length > 2);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function switchOfStuff(val) {
+  var answer = "";
+  // Only change code below this line
+
+
+
+  // Only change code above this line
+  return answer;
+}
+
+switchOfStuff(1);
+```
+
 # --solutions--
 
+```js
+function switchOfStuff(val) {
+  var answer = "";
+
+  switch(val) {
+    case "a":
+      answer = "apple";
+      break;
+    case "b":
+      answer = "bird";
+      break;
+    case "c":
+      answer = "cat";
+      break;
+    default:
+      answer = "stuff";
+  }
+  return answer;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/appending-variables-to-strings.md

@@ -4,6 +4,7 @@ title: 将变量附加到字符串
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cbQmZfa'
 forumTopicId: 16656
+dashedName: appending-variables-to-strings
 ---
 
 # --description--
@@ -28,5 +29,40 @@ assert(typeof someAdjective !== 'undefined' && someAdjective.length > 2);
 assert(code.match(/myStr\s*\+=\s*someAdjective\s*/).length > 0);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){
+  var output = [];
+  if(typeof someAdjective === 'string') {
+    output.push('someAdjective = "' + someAdjective + '"');
+  } else {
+    output.push('someAdjective is not a string');
+  }
+  if(typeof myStr === 'string') {
+    output.push('myStr = "' + myStr + '"');
+  } else {
+    output.push('myStr is not a string');
+  }
+  return output.join('\n');
+})();
+```
+
+## --seed-contents--
+
+```js
+// Change code below this line
+
+var someAdjective;
+var myStr = "Learning to code is ";
+```
+
 # --solutions--
 
+```js
+var someAdjective = "neat";
+var myStr = "Learning to code is ";
+myStr += someAdjective;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/assigning-the-value-of-one-variable-to-another.md

@@ -4,6 +4,7 @@ title: Assigning the Value of One Variable to Another
 challengeType: 1
 videoUrl: ''
 forumTopicId: 418265
+dashedName: assigning-the-value-of-one-variable-to-another
 ---
 
 # --description--

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/assignment-with-a-returned-value.md

@@ -4,6 +4,7 @@ title: 用返回值来赋值
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/ce2pEtB'
 forumTopicId: 16658
+dashedName: assignment-with-a-returned-value
 ---
 
 # --description--
@@ -34,5 +35,35 @@ assert(processed === 2);
 assert(/processed\s*=\s*processArg\(\s*7\s*\)\s*;/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){return "processed = " + processed})();
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var processed = 0;
+
+function processArg(num) {
+  return (num + 3) / 5;
+}
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var processed = 0;
+
+function processArg(num) {
+  return (num + 3) / 5;
+}
+
+processed = processArg(7);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.md

@@ -4,6 +4,7 @@ title: 新建 JavaScript 对象
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cWGkbtd'
 forumTopicId: 16769
+dashedName: build-javascript-objects
 ---
 
 # --description--
@@ -127,5 +128,32 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return z;})(myDog);
+```
+
+## --seed-contents--
+
+```js
+var myDog = {
+// Only change code below this line
+
+
+// Only change code above this line
+};
+```
+
 # --solutions--
 
+```js
+var myDog = {
+  "name": "Camper",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["everything!"]
+};
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/chaining-if-else-statements.md

@@ -4,6 +4,7 @@ title: 多个 if else 语句
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/caeJgsw'
 forumTopicId: 16772
+dashedName: chaining-if-else-statements
 ---
 
 # --description--
@@ -113,5 +114,36 @@ assert(testSize(20) === 'Huge');
 assert(testSize(25) === 'Huge');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function testSize(num) {
+  // Only change code below this line
+
+
+  return "Change Me";
+  // Only change code above this line
+}
+
+testSize(7);
+```
+
 # --solutions--
 
+```js
+function testSize(num) {
+  if (num < 5) {
+    return "Tiny";
+  } else if (num < 10) {
+    return "Small";
+  } else if (num < 15) {
+    return "Medium";
+  } else if (num < 20) {
+    return "Large";
+  } else {
+    return "Huge";
+  }
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comment-your-javascript-code.md

@@ -4,6 +4,7 @@ title: 给代码添加注释
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c7ynnTp'
 forumTopicId: 16783
+dashedName: comment-your-javascript-code
 ---
 
 # --description--
@@ -46,5 +47,16 @@ assert(code.match(/(\/\/)...../g));
 assert(code.match(/(\/\*)([^\/]{5,})(?=\*\/)/gm));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+```
+
 # --solutions--
 
+```js
+// Fake Comment
+/* Another Comment */
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-equality-operator.md

@@ -4,6 +4,7 @@ title: 相等运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cKyVMAL'
 forumTopicId: 16784
+dashedName: comparison-with-the-equality-operator
 ---
 
 # --description--
@@ -60,5 +61,29 @@ assert(testEqual('12') === 'Equal');
 assert(code.match(/==/g) && !code.match(/===/g));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+function testEqual(val) {
+  if (val) { // Change this line
+    return "Equal";
+  }
+  return "Not Equal";
+}
+
+testEqual(10);
+```
+
 # --solutions--
 
+```js
+function testEqual(val) {
+  if (val == 12) {
+    return "Equal";
+  }
+  return "Not Equal";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-greater-than-operator.md

@@ -4,6 +4,7 @@ title: 大于运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cp6GbH4'
 forumTopicId: 16786
+dashedName: comparison-with-the-greater-than-operator
 ---
 
 # --description--
@@ -75,5 +76,36 @@ assert(testGreaterThan(150) === 'Over 100');
 assert(code.match(/val\s*>\s*('|")*\d+('|")*/g).length > 1);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function testGreaterThan(val) {
+  if (val) {  // Change this line
+    return "Over 100";
+  }
+
+  if (val) {  // Change this line
+    return "Over 10";
+  }
+
+  return "10 or Under";
+}
+
+testGreaterThan(10);
+```
+
 # --solutions--
 
+```js
+function testGreaterThan(val) {
+  if (val > 100) {  // Change this line
+    return "Over 100";
+  }
+  if (val > 10) {  // Change this line
+    return "Over 10";
+  }
+  return "10 or Under";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-greater-than-or-equal-to-operator.md

@@ -4,6 +4,7 @@ title: 大于或等于运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c6KBqtV'
 forumTopicId: 16785
+dashedName: comparison-with-the-greater-than-or-equal-to-operator
 ---
 
 # --description--
@@ -75,5 +76,38 @@ assert(testGreaterOrEqual(21) === '20 or Over');
 assert(code.match(/val\s*>=\s*('|")*\d+('|")*/g).length > 1);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function testGreaterOrEqual(val) {
+  if (val) {  // Change this line
+    return "20 or Over";
+  }
+
+  if (val) {  // Change this line
+    return "10 or Over";
+  }
+
+  return "Less than 10";
+}
+
+testGreaterOrEqual(10);
+```
+
 # --solutions--
 
+```js
+function testGreaterOrEqual(val) {
+  if (val >= 20) {  // Change this line
+    return "20 or Over";
+  }
+
+  if (val >= 10) {  // Change this line
+    return "10 or Over";
+  }
+
+  return "Less than 10";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-inequality-operator.md

@@ -4,6 +4,7 @@ title: 不等运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cdBm9Sr'
 forumTopicId: 16787
+dashedName: comparison-with-the-inequality-operator
 ---
 
 # --description--
@@ -62,5 +63,29 @@ assert(testNotEqual('bob') === 'Not Equal');
 assert(code.match(/(?!!==)!=/));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+function testNotEqual(val) {
+  if (val) { // Change this line
+    return "Not Equal";
+  }
+  return "Equal";
+}
+
+testNotEqual(10);
+```
+
 # --solutions--
 
+```js
+function testNotEqual(val) {
+  if (val != 99) {
+    return "Not Equal";
+  }
+  return "Equal";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-less-than-operator.md

@@ -4,6 +4,7 @@ title: 小于运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cNVRWtB'
 forumTopicId: 16789
+dashedName: comparison-with-the-less-than-operator
 ---
 
 # --description--
@@ -68,5 +69,38 @@ assert(testLessThan(99) === '55 or Over');
 assert(code.match(/val\s*<\s*('|")*\d+('|")*/g).length > 1);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function testLessThan(val) {
+  if (val) {  // Change this line
+    return "Under 25";
+  }
+
+  if (val) {  // Change this line
+    return "Under 55";
+  }
+
+  return "55 or Over";
+}
+
+testLessThan(10);
+```
+
 # --solutions--
 
+```js
+function testLessThan(val) {
+  if (val < 25) {  // Change this line
+    return "Under 25";
+  }
+
+  if (val < 55) {  // Change this line
+    return "Under 55";
+  }
+
+  return "55 or Over";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-less-than-or-equal-to-operator.md

@@ -4,6 +4,7 @@ title: 小于或等于运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cNVR7Am'
 forumTopicId: 16788
+dashedName: comparison-with-the-less-than-or-equal-to-operator
 ---
 
 # --description--
@@ -74,5 +75,38 @@ assert(testLessOrEqual(55) === 'More Than 24');
 assert(code.match(/val\s*<=\s*('|")*\d+('|")*/g).length > 1);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function testLessOrEqual(val) {
+  if (val) {  // Change this line
+    return "Smaller Than or Equal to 12";
+  }
+
+  if (val) {  // Change this line
+    return "Smaller Than or Equal to 24";
+  }
+
+  return "More Than 24";
+}
+
+testLessOrEqual(10);
+```
+
 # --solutions--
 
+```js
+function testLessOrEqual(val) {
+  if (val <= 12) {  // Change this line
+    return "Smaller Than or Equal to 12";
+  }
+
+  if (val <= 24) {  // Change this line
+    return "Smaller Than or Equal to 24";
+  }
+
+  return "More Than 24";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-strict-equality-operator.md

@@ -4,6 +4,7 @@ title: 严格相等运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cy87atr'
 forumTopicId: 16790
+dashedName: comparison-with-the-strict-equality-operator
 ---
 
 # --description--
@@ -51,5 +52,29 @@ assert(testStrict('7') === 'Not Equal');
 assert(code.match(/(val\s*===\s*\d+)|(\d+\s*===\s*val)/g).length > 0);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+function testStrict(val) {
+  if (val) { // Change this line
+    return "Equal";
+  }
+  return "Not Equal";
+}
+
+testStrict(10);
+```
+
 # --solutions--
 
+```js
+function testStrict(val) {
+  if (val === 7) {
+    return "Equal";
+  }
+  return "Not Equal";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-strict-inequality-operator.md

@@ -4,6 +4,7 @@ title: 严格不等运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cKekkUy'
 forumTopicId: 16791
+dashedName: comparison-with-the-strict-inequality-operator
 ---
 
 # --description--
@@ -54,5 +55,29 @@ assert(testStrictNotEqual('bob') === 'Not Equal');
 assert(code.match(/(val\s*!==\s*\d+)|(\d+\s*!==\s*val)/g).length > 0);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+function testStrictNotEqual(val) {
+  if (val) { // Change this line
+    return "Not Equal";
+  }
+  return "Equal";
+}
+
+testStrictNotEqual(10);
+```
+
 # --solutions--
 
+```js
+function testStrictNotEqual(val) {
+  if (val !== 17) {
+    return "Not Equal";
+  }
+  return "Equal";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparisons-with-the-logical-and-operator.md

@@ -4,6 +4,7 @@ title: 逻辑与运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cvbRVtr'
 forumTopicId: 16799
+dashedName: comparisons-with-the-logical-and-operator
 ---
 
 # --description--
@@ -96,5 +97,34 @@ assert(testLogicalAnd(75) === 'No');
 assert(testLogicalAnd(80) === 'No');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function testLogicalAnd(val) {
+  // Only change code below this line
+
+  if (val) {
+    if (val) {
+      return "Yes";
+    }
+  }
+
+  // Only change code above this line
+  return "No";
+}
+
+testLogicalAnd(10);
+```
+
 # --solutions--
 
+```js
+function testLogicalAnd(val) {
+  if (val >= 25 && val <= 50) {
+    return "Yes";
+  }
+  return "No";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparisons-with-the-logical-or-operator.md

@@ -4,6 +4,7 @@ title: 逻辑或运算符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cEPrGTN'
 forumTopicId: 16800
+dashedName: comparisons-with-the-logical-or-operator
 ---
 
 # --description--
@@ -99,5 +100,36 @@ assert(testLogicalOr(21) === 'Outside');
 assert(testLogicalOr(25) === 'Outside');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function testLogicalOr(val) {
+  // Only change code below this line
+
+  if (val) {
+    return "Outside";
+  }
+
+  if (val) {
+    return "Outside";
+  }
+
+  // Only change code above this line
+  return "Inside";
+}
+
+testLogicalOr(15);
+```
+
 # --solutions--
 
+```js
+function testLogicalOr(val) {
+  if (val < 10 || val > 20) {
+    return "Outside";
+  }
+  return "Inside";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/compound-assignment-with-augmented-addition.md

@@ -4,6 +4,7 @@ title: 复合赋值之 +=
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cDR6LCb'
 forumTopicId: 16661
+dashedName: compound-assignment-with-augmented-addition
 ---
 
 # --description--
@@ -62,5 +63,35 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(a,b,c){ return "a = " + a + ", b = " + b + ", c = " + c; })(a,b,c);
+```
+
+## --seed-contents--
+
+```js
+var a = 3;
+var b = 17;
+var c = 12;
+
+// Only change code below this line
+a = a + 12;
+b = 9 + b;
+c = c + 7;
+```
+
 # --solutions--
 
+```js
+var a = 3;
+var b = 17;
+var c = 12;
+
+a += 12;
+b += 9;
+c += 7;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/compound-assignment-with-augmented-division.md

@@ -4,6 +4,7 @@ title: 复合赋值之 /=
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c2QvKT2'
 forumTopicId: 16659
+dashedName: compound-assignment-with-augmented-division
 ---
 
 # --description--
@@ -56,5 +57,35 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(a,b,c){ return "a = " + a + ", b = " + b + ", c = " + c; })(a,b,c);
+```
+
+## --seed-contents--
+
+```js
+var a = 48;
+var b = 108;
+var c = 33;
+
+// Only change code below this line
+a = a / 12;
+b = b / 4;
+c = c / 11;
+```
+
 # --solutions--
 
+```js
+var a = 48;
+var b = 108;
+var c = 33;
+
+a /= 12;
+b /= 4;
+c /= 11;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/compound-assignment-with-augmented-multiplication.md

@@ -4,6 +4,7 @@ title: 复合赋值之 *=
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c83vrfa'
 forumTopicId: 16662
+dashedName: compound-assignment-with-augmented-multiplication
 ---
 
 # --description--
@@ -56,5 +57,35 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(a,b,c){ return "a = " + a + ", b = " + b + ", c = " + c; })(a,b,c);
+```
+
+## --seed-contents--
+
+```js
+var a = 5;
+var b = 12;
+var c = 4.6;
+
+// Only change code below this line
+a = a * 5;
+b = 3 * b;
+c = c * 10;
+```
+
 # --solutions--
 
+```js
+var a = 5;
+var b = 12;
+var c = 4.6;
+
+a *= 5;
+b *= 3;
+c *= 10;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/compound-assignment-with-augmented-subtraction.md

@@ -4,6 +4,7 @@ title: 复合赋值之 -=
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c2Qv7AV'
 forumTopicId: 16660
+dashedName: compound-assignment-with-augmented-subtraction
 ---
 
 # --description--
@@ -54,5 +55,35 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(a,b,c){ return "a = " + a + ", b = " + b + ", c = " + c; })(a,b,c);
+```
+
+## --seed-contents--
+
+```js
+var a = 11;
+var b = 9;
+var c = 3;
+
+// Only change code below this line
+a = a - 6;
+b = b - 15;
+c = c - 1;
+```
+
 # --solutions--
 
+```js
+var a = 11;
+var b = 9;
+var c = 3;
+
+a -= 6;
+b -= 15;
+c -= 1;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-plus-operator.md

@@ -4,6 +4,7 @@ title: 用加号运算符连接字符串
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cNpM8AN'
 forumTopicId: 16802
+dashedName: concatenating-strings-with-plus-operator
 ---
 
 # --description--
@@ -49,5 +50,28 @@ assert(/var\s+myStr/.test(code));
 assert(/myStr\s*=/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){
+  if(typeof myStr === 'string') {
+    return 'myStr = "' + myStr + '"';
+  } else {
+    return 'myStr is not a string';
+  }
+})();
+```
+
+## --seed-contents--
+
+```js
+var myStr; // Change this line
+```
+
 # --solutions--
 
+```js
+var myStr = "This is the start. " + "This is the end.";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-the-plus-equals-operator.md

@@ -4,6 +4,7 @@ title: 用 += 运算符连接字符串
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cbQmmC4'
 forumTopicId: 16803
+dashedName: concatenating-strings-with-the-plus-equals-operator
 ---
 
 # --description--
@@ -35,5 +36,31 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){
+  if(typeof myStr === 'string') {
+    return 'myStr = "' + myStr + '"';
+  } else {
+    return 'myStr is not a string';
+  }
+})();
+```
+
+## --seed-contents--
+
+```js
+// Only change code below this line
+
+var myStr;
+```
+
 # --solutions--
 
+```js
+var myStr = "This is the first sentence. ";
+myStr += "This is the second sentence.";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/constructing-strings-with-variables.md

@@ -4,6 +4,7 @@ title: 用变量构造字符串
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cqk8rf4'
 forumTopicId: 16805
+dashedName: constructing-strings-with-variables
 ---
 
 # --description--
@@ -28,5 +29,38 @@ assert(typeof myName !== 'undefined' && myName.length > 2);
 assert(code.match(/["']\s*\+\s*myName\s*\+\s*["']/g).length > 0);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){
+  var output = [];
+  if(typeof myName === 'string') {
+    output.push('myName = "' + myName + '"');
+  } else {
+    output.push('myName is not a string');
+  }
+  if(typeof myStr === 'string') {
+    output.push('myStr = "' + myStr + '"');
+  } else {
+    output.push('myStr is not a string');
+  }
+  return output.join('\n');
+})();
+```
+
+## --seed-contents--
+
+```js
+// Only change code below this line
+var myName;
+var myStr;
+```
+
 # --solutions--
 
+```js
+var myName = "Bob";
+var myStr = "My name is " + myName + " and I am well!";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/count-backwards-with-a-for-loop.md

@@ -4,6 +4,7 @@ title: 使用 For 循环反向遍历数组
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c2R6BHa'
 forumTopicId: 16808
+dashedName: count-backwards-with-a-for-loop
 ---
 
 # --description--
@@ -47,5 +48,28 @@ assert(code.match(/myArray.push/));
 assert.deepEqual(myArray, [9, 7, 5, 3, 1]);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myArray !== "undefined"){(function(){return myArray;})();}
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [];
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myArray = [];
+for (var i = 9; i > 0; i -= 2) {
+  myArray.push(i);
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/counting-cards.md

@@ -4,6 +4,7 @@ title: 21点游戏
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c6KE7ty'
 forumTopicId: 16809
+dashedName: counting-cards
 ---
 
 # --description--
@@ -152,5 +153,48 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+var count = 0;
+
+function cc(card) {
+  // Only change code below this line
+
+
+  return "Change Me";
+  // Only change code above this line
+}
+
+cc(2); cc(3); cc(7); cc('K'); cc('A');
+```
+
 # --solutions--
 
+```js
+var count = 0;
+function cc(card) {
+  switch(card) {
+    case 2:
+    case 3:
+    case 4:
+    case 5:
+    case 6:
+      count++;
+      break;
+    case 10:
+    case 'J':
+    case 'Q':
+    case 'K':
+    case 'A':
+      count--;
+  }
+  if(count > 0) {
+    return count + " Bet";
+  } else {
+    return count + " Hold";
+  }
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/create-decimal-numbers-with-javascript.md

@@ -4,6 +4,7 @@ title: 创建一个小数
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/ca8GEuW'
 forumTopicId: 16826
+dashedName: create-decimal-numbers-with-javascript
 ---
 
 # --description--
@@ -31,5 +32,24 @@ assert(typeof myDecimal === 'number');
 assert(myDecimal % 1 != 0);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){if(typeof myDecimal !== "undefined"){return myDecimal;}})();
+```
+
+## --seed-contents--
+
+```js
+var ourDecimal = 5.7;
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myDecimal = 9.9;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/declare-javascript-variables.md

@@ -4,6 +4,7 @@ title: 声明变量
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cNanrHq'
 forumTopicId: 17556
+dashedName: declare-javascript-variables
 ---
 
 # --description--
@@ -42,5 +43,21 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myName !== "undefined"){(function(v){return v;})(myName);}
+```
+
+## --seed-contents--
+
+```js
+```
+
 # --solutions--
 
+```js
+var myName;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/declare-string-variables.md

@@ -4,6 +4,7 @@ title: 声明字符串变量
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c2QvWU6'
 forumTopicId: 17557
+dashedName: declare-string-variables
 ---
 
 # --description--
@@ -56,5 +57,22 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myFirstName !== "undefined" && typeof myLastName !== "undefined"){(function(){return myFirstName + ', ' + myLastName;})();}
+```
+
+## --seed-contents--
+
+```js
+```
+
 # --solutions--
 
+```js
+var myFirstName = "Alan";
+var myLastName = "Turing";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/decrement-a-number-with-javascript.md

@@ -4,6 +4,7 @@ title: 数字递减
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cM2KeS2'
 forumTopicId: 17558
+dashedName: decrement-a-number-with-javascript
 ---
 
 # --description--
@@ -51,5 +52,26 @@ assert(/[-]{2}\s*myVar|myVar\s*[-]{2}/.test(code));
 assert(/var myVar = 11;/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return 'myVar = ' + z;})(myVar);
+```
+
+## --seed-contents--
+
+```js
+var myVar = 11;
+
+// Only change code below this line
+myVar = myVar - 1;
+```
+
 # --solutions--
 
+```js
+var myVar = 11;
+myVar--;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/delete-properties-from-a-javascript-object.md

@@ -4,6 +4,7 @@ title: 删除对象的属性
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cDqKdTv'
 forumTopicId: 17560
+dashedName: delete-properties-from-a-javascript-object
 ---
 
 # --description--
@@ -30,5 +31,38 @@ assert(typeof myDog === 'object' && myDog.tails === undefined);
 assert(code.match(/"tails": 1/g).length > 1);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return z;})(myDog);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myDog = {
+  "name": "Happy Coder",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["freeCodeCamp Campers"],
+  "bark": "woof"
+};
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myDog = {
+  "name": "Happy Coder",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["freeCodeCamp Campers"],
+  "bark": "woof"
+};
+delete myDog.tails;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/divide-one-decimal-by-another-with-javascript.md

@@ -4,6 +4,7 @@ title: 两个小数相除
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cBZe9AW'
 forumTopicId: 18255
+dashedName: divide-one-decimal-by-another-with-javascript
 ---
 
 # --description--
@@ -34,5 +35,22 @@ quotient 变量应该只被赋值一次。
 assert(code.match(/quotient/g).length === 1);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(y){return 'quotient = '+y;})(quotient);
+```
+
+## --seed-contents--
+
+```js
+var quotient = 0.0 / 2.0; // Change this line
+```
+
 # --solutions--
 
+```js
+var quotient = 4.4 / 2.0;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/divide-one-number-by-another-with-javascript.md

@@ -4,6 +4,7 @@ title: 除法运算
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cqkbdAr'
 forumTopicId: 17566
+dashedName: divide-one-number-by-another-with-javascript
 ---
 
 # --description--
@@ -36,5 +37,22 @@ assert(quotient === 2);
 assert(/\d+\s*\/\s*\d+/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return 'quotient = '+z;})(quotient);
+```
+
+## --seed-contents--
+
+```js
+var quotient = 66 / 0;
+```
+
 # --solutions--
 
+```js
+var quotient = 66 / 33;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/escape-sequences-in-strings.md

@@ -4,6 +4,7 @@ title: 字符串中的转义序列
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cvmqRh6'
 forumTopicId: 17567
+dashedName: escape-sequences-in-strings
 ---
 
 # --description--
@@ -72,5 +73,24 @@ assert(/SecondLine\nThirdLine/.test(myStr));
 assert(myStr === 'FirstLine\n\t\\SecondLine\nThirdLine');
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){
+if (myStr !== undefined){
+console.log('myStr:\n' + myStr);}})();
+```
+
+## --seed-contents--
+
+```js
+var myStr; // Change this line
+```
+
 # --solutions--
 
+```js
+var myStr = "FirstLine\n\t\\SecondLine\nThirdLine";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/escaping-literal-quotes-in-strings.md

@@ -4,6 +4,7 @@ title: 转义字符串中的引号
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c2QvgSr'
 forumTopicId: 17568
+dashedName: escaping-literal-quotes-in-strings
 ---
 
 # --description--
@@ -38,5 +39,28 @@ assert(code.match(/\\"/g).length === 4 && code.match(/[^\\]"/g).length === 2);
 assert(myStr === 'I am a "double quoted" string inside "double quotes".');
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){
+  if(typeof myStr === 'string') {
+    console.log("myStr = \"" + myStr + "\"");
+  } else {
+    console.log("myStr is undefined");
+  }
+})();
+```
+
+## --seed-contents--
+
+```js
+var myStr = ""; // Change this line
+```
+
 # --solutions--
 
+```js
+var myStr = "I am a \"double quoted\" string inside \"double quotes\".";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/find-the-length-of-a-string.md

@@ -4,6 +4,7 @@ title: 查找字符串的长度
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cvmqEAd'
 forumTopicId: 18182
+dashedName: find-the-length-of-a-string
 ---
 
 # --description--
@@ -41,5 +42,24 @@ assert(typeof lastNameLength !== 'undefined' && lastNameLength === 8);
 assert(code.match(/=\s*lastName\.length/g) && !code.match(/lastName\s*=\s*8/));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+var lastNameLength = 0;
+var lastName = "Lovelace";
+
+// Only change code below this line
+
+lastNameLength = lastName;
+```
+
 # --solutions--
 
+```js
+var lastNameLength = 0;
+var lastName = "Lovelace";
+lastNameLength = lastName.length;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/finding-a-remainder-in-javascript.md

@@ -4,6 +4,7 @@ title: 求余运算
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cWP24Ub'
 forumTopicId: 18184
+dashedName: finding-a-remainder-in-javascript
 ---
 
 # --description--
@@ -46,5 +47,24 @@ assert(remainder === 2);
 assert(/\s+?remainder\s*?=\s*?.*%.*;/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(y){return 'remainder = '+y;})(remainder);
+```
+
+## --seed-contents--
+
+```js
+// Only change code below this line
+
+var remainder;
+```
+
 # --solutions--
 
+```js
+var remainder =  11 % 3;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/generate-random-fractions-with-javascript.md

@@ -4,6 +4,7 @@ title: 使用 JavaScript 生成随机分数
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cyWJJs3'
 forumTopicId: 18185
+dashedName: generate-random-fractions-with-javascript
 ---
 
 # --description--
@@ -39,5 +40,31 @@ assert((randomFraction() + '').match(/\./g));
 assert(code.match(/Math\.random/g).length >= 0);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){return randomFraction();})();
+```
+
+## --seed-contents--
+
+```js
+function randomFraction() {
+
+  // Only change code below this line
+
+  return 0;
+
+  // Only change code above this line
+}
+```
+
 # --solutions--
 
+```js
+function randomFraction() {
+  return Math.random();
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/generate-random-whole-numbers-with-javascript.md

@@ -4,6 +4,7 @@ title: 使用 JavaScript 生成随机整数
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cRn6bfr'
 forumTopicId: 18186
+dashedName: generate-random-whole-numbers-with-javascript
 ---
 
 # --description--
@@ -59,5 +60,29 @@ assert(
 assert(code.match(/Math.floor/g).length > 1);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){return randomWholeNum();})();
+```
+
+## --seed-contents--
+
+```js
+function randomWholeNum() {
+
+  // Only change code below this line
+
+  return Math.random();
+}
+```
+
 # --solutions--
 
+```js
+function randomWholeNum() {
+  return Math.floor(Math.random() * 10);
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/generate-random-whole-numbers-within-a-range.md

@@ -4,6 +4,7 @@ title: 生成某个范围内的随机整数
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cm83yu6'
 forumTopicId: 18187
+dashedName: generate-random-whole-numbers-within-a-range
 ---
 
 # --description--
@@ -59,5 +60,41 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+var calcMin = 100;
+var calcMax = -100;
+for(var i = 0; i < 100; i++) {
+  var result = randomRange(5,15);
+  calcMin = Math.min(calcMin, result);
+  calcMax = Math.max(calcMax, result);
+}
+(function(){
+  if(typeof myRandom === 'number') {
+    return "myRandom = " + myRandom;
+  } else {
+    return "myRandom undefined";
+  }
+})()
+```
+
+## --seed-contents--
+
+```js
+function randomRange(myMin, myMax) {
+  // Only change code below this line
+  return 0;
+  // Only change code above this line
+}
+```
+
 # --solutions--
 
+```js
+function randomRange(myMin, myMax) {
+  return Math.floor(Math.random() * (myMax - myMin + 1)) + myMin;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/global-scope-and-functions.md

@@ -4,6 +4,7 @@ title: 全局作用域和函数
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cQM7mCN'
 forumTopicId: 18193
+dashedName: global-scope-and-functions
 ---
 
 # --description--
@@ -44,5 +45,84 @@ assert(/var\s+myGlobal/.test(code));
 assert(typeof oopsGlobal != 'undefined' && oopsGlobal === 5);
 ```
 
+# --seed--
+
+## --before-user-code--
+
+```js
+var logOutput = "";
+var originalConsole = console
+function capture() {
+    var nativeLog = console.log;
+    console.log = function (message) {
+        logOutput = message;
+        if(nativeLog.apply) {
+          nativeLog.apply(originalConsole, arguments);
+        } else {
+          var nativeMsg = Array.prototype.slice.apply(arguments).join(' ');
+          nativeLog(nativeMsg);
+        }
+    };
+}
+
+function uncapture() {
+  console.log = originalConsole.log;
+}
+var oopsGlobal;
+capture();
+```
+
+## --after-user-code--
+
+```js
+fun1();
+fun2();
+uncapture();
+(function() { return logOutput || "console.log never called"; })();
+```
+
+## --seed-contents--
+
+```js
+// Declare the myGlobal variable below this line
+
+
+function fun1() {
+  // Assign 5 to oopsGlobal Here
+
+}
+
+// Only change code above this line
+
+function fun2() {
+  var output = "";
+  if (typeof myGlobal != "undefined") {
+    output += "myGlobal: " + myGlobal;
+  }
+  if (typeof oopsGlobal != "undefined") {
+    output += " oopsGlobal: " + oopsGlobal;
+  }
+  console.log(output);
+}
+```
+
 # --solutions--
 
+```js
+var myGlobal = 10;
+
+function fun1() {
+  oopsGlobal = 5;
+}
+
+function fun2() {
+  var output = "";
+  if(typeof myGlobal != "undefined") {
+    output += "myGlobal: " + myGlobal;
+  }
+  if(typeof oopsGlobal != "undefined") {
+    output += " oopsGlobal: " + oopsGlobal;
+  }
+  console.log(output);
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/global-vs.-local-scope-in-functions.md

@@ -4,6 +4,7 @@ title: 函数中的全局作用域和局部作用域
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c2QwKH2'
 forumTopicId: 18194
+dashedName: global-vs--local-scope-in-functions
 ---
 
 # --description--
@@ -46,5 +47,32 @@ assert(myOutfit() === 'sweater');
 assert(/return outerWear/.test(code));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+var outerWear = "T-Shirt";
+
+function myOutfit() {
+  // Only change code below this line
+
+
+
+  // Only change code above this line
+  return outerWear;
+}
+
+myOutfit();
+```
+
 # --solutions--
 
+```js
+var outerWear = "T-Shirt";
+function myOutfit() {
+  var outerWear = "sweater";
+  return outerWear;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/golf-code.md

@@ -4,6 +4,7 @@ title: 高尔夫代码
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c9ykNUR'
 forumTopicId: 18195
+dashedName: golf-code
 ---
 
 # --description--
@@ -84,5 +85,51 @@ assert(golfScore(4, 7) === 'Go Home!');
 assert(golfScore(5, 9) === 'Go Home!');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+var names = ["Hole-in-one!", "Eagle", "Birdie", "Par", "Bogey", "Double Bogey", "Go Home!"];
+function golfScore(par, strokes) {
+  // Only change code below this line
+
+
+  return "Change Me";
+  // Only change code above this line
+}
+
+golfScore(5, 4);
+```
+
 # --solutions--
 
+```js
+function golfScore(par, strokes) {
+  if (strokes === 1) {
+    return "Hole-in-one!";
+  }
+
+  if (strokes <= par - 2) {
+    return "Eagle";
+  }
+
+  if (strokes === par - 1) {
+    return "Birdie";
+  }
+
+  if (strokes === par) {
+    return "Par";
+  }
+
+  if (strokes === par + 1) {
+    return "Bogey";
+  }
+
+  if(strokes === par + 2) {
+    return "Double Bogey";
+  }
+
+  return "Go Home!";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/increment-a-number-with-javascript.md

@@ -4,6 +4,7 @@ title: 数字递增
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/ca8GLT9'
 forumTopicId: 18201
+dashedName: increment-a-number-with-javascript
 ---
 
 # --description--
@@ -52,5 +53,26 @@ assert(/[+]{2}\s*myVar|myVar\s*[+]{2}/.test(code));
 assert(/var myVar = 87;/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return 'myVar = ' + z;})(myVar);
+```
+
+## --seed-contents--
+
+```js
+var myVar = 87;
+
+// Only change code below this line
+myVar = myVar + 1;
+```
+
 # --solutions--
 
+```js
+var myVar = 87;
+myVar++;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/initializing-variables-with-the-assignment-operator.md

@@ -4,6 +4,7 @@ title: 使用赋值运算符初始化变量
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cWJ4Bfb'
 forumTopicId: 301171
+dashedName: initializing-variables-with-the-assignment-operator
 ---
 
 # --description--
@@ -26,5 +27,21 @@ forumTopicId: 301171
 assert(/var\s+a\s*=\s*9\s*/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof a !== 'undefined') {(function(a){return "a = " + a;})(a);} else { (function() {return 'a is undefined';})(); }
+```
+
+## --seed-contents--
+
+```js
+```
+
 # --solutions--
 
+```js
+var a = 9;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/introducing-else-if-statements.md

@@ -4,6 +4,7 @@ title: 介绍 else if 语句
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/caeJ2hm'
 forumTopicId: 18206
+dashedName: introducing-else-if-statements
 ---
 
 # --description--
@@ -74,5 +75,36 @@ assert(testElseIf(12) === 'Greater than 10');
 assert(testElseIf(12) === 'Greater than 10');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function testElseIf(val) {
+  if (val > 10) {
+    return "Greater than 10";
+  }
+
+  if (val < 5) {
+    return "Smaller than 5";
+  }
+
+  return "Between 5 and 10";
+}
+
+testElseIf(7);
+```
+
 # --solutions--
 
+```js
+function testElseIf(val) {
+  if(val > 10) {
+    return "Greater than 10";
+  } else if(val < 5) {
+    return "Smaller than 5";
+  } else {
+    return "Between 5 and 10";
+  }
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/introducing-else-statements.md

@@ -4,6 +4,7 @@ title: 介绍 else 语句
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cek4Efq'
 forumTopicId: 18207
+dashedName: introducing-else-statements
 ---
 
 # --description--
@@ -66,5 +67,40 @@ assert(testElse(10) === 'Bigger than 5');
 assert(/var result = "";/.test(code) && /return result;/.test(code));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function testElse(val) {
+  var result = "";
+  // Only change code below this line
+
+  if (val > 5) {
+    result = "Bigger than 5";
+  }
+
+  if (val <= 5) {
+    result = "5 or Smaller";
+  }
+
+  // Only change code above this line
+  return result;
+}
+
+testElse(4);
+```
+
 # --solutions--
 
+```js
+function testElse(val) {
+  var result = "";
+  if(val > 5) {
+    result = "Bigger than 5";
+  } else {
+    result = "5 or Smaller";
+  }
+  return result;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-odd-numbers-with-a-for-loop.md

@@ -4,6 +4,7 @@ title: 使用 For 循环遍历数组的奇数
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cm8n7T9'
 forumTopicId: 18212
+dashedName: iterate-odd-numbers-with-a-for-loop
 ---
 
 # --description--
@@ -41,5 +42,28 @@ assert(code.match(/for\s*\(/g).length > 1);
 assert.deepEqual(myArray, [1, 3, 5, 7, 9]);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myArray !== "undefined"){(function(){return myArray;})();}
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [];
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myArray = [];
+for (var i = 1; i < 10; i += 2) {
+  myArray.push(i);
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-through-an-array-with-a-for-loop.md

@@ -4,6 +4,7 @@ title: 使用 For 循环遍历数组
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/caeR3HB'
 forumTopicId: 18216
+dashedName: iterate-through-an-array-with-a-for-loop
 ---
 
 # --description--
@@ -49,5 +50,30 @@ assert(code.match(/for\s*\(/g).length > 1 && code.match(/myArr\s*\[/));
 assert(!code.match(/total[\s\+\-]*=\s*(\d(?!\s*[;,])|[1-9])/g));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(){if(typeof total !== 'undefined') { return "total = " + total; } else { return "total is undefined";}})()
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArr = [ 2, 3, 4, 5, 6];
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myArr = [ 2, 3, 4, 5, 6];
+var total = 0;
+
+for (var i = 0; i < myArr.length; i++) {
+  total += myArr[i];
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-with-javascript-do...while-loops.md

@@ -4,6 +4,7 @@ title: do...while 循环
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cDqWGcp'
 forumTopicId: 301172
+dashedName: iterate-with-javascript-do---while-loops
 ---
 
 # --description--
@@ -67,5 +68,35 @@ assert.deepEqual(myArray, [10]);
 assert.deepEqual(i, 11);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myArray !== "undefined"){(function(){return myArray;})();}
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [];
+var i = 10;
+
+// Only change code below this line
+while (i < 5) {
+  myArray.push(i);
+  i++;
+}
+```
+
 # --solutions--
 
+```js
+var myArray = [];
+var i = 10;
+do {
+  myArray.push(i);
+  i++;
+} while (i < 5)
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-with-javascript-for-loops.md

@@ -4,6 +4,7 @@ title: for 循环
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c9yNVCe'
 forumTopicId: 18219
+dashedName: iterate-with-javascript-for-loops
 ---
 
 # --description--
@@ -51,5 +52,28 @@ assert(code.match(/for\s*\(/g).length > 1);
 assert.deepEqual(myArray, [1, 2, 3, 4, 5]);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if (typeof myArray !== "undefined"){(function(){return myArray;})();}
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [];
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myArray = [];
+for (var i = 1; i < 6; i++) {
+  myArray.push(i);
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-with-javascript-while-loops.md

@@ -4,6 +4,7 @@ title: while 循环
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c8QbnCM'
 forumTopicId: 18220
+dashedName: iterate-with-javascript-while-loops
 ---
 
 # --description--
@@ -43,5 +44,30 @@ assert(code.match(/while/g));
 assert.deepEqual(myArray, [0, 1, 2, 3, 4]);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myArray !== "undefined"){(function(){return myArray;})();}
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [];
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myArray = [];
+var i = 5;
+while(i >= 0) {
+  myArray.push(i);
+  i--;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/local-scope-and-functions.md

@@ -4,6 +4,7 @@ title: 局部作用域和函数
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cd62NhM'
 forumTopicId: 18227
+dashedName: local-scope-and-functions
 ---
 
 # --description--
@@ -44,5 +45,36 @@ assert(typeof myVar === 'undefined');
 assert(/var\s+myVar/.test(code));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function myLocalScope() {
+
+  // Only change code below this line
+
+  console.log('inside myLocalScope', myVar);
+}
+myLocalScope();
+
+// Run and check the console
+// myVar is not defined outside of myLocalScope
+console.log('outside myLocalScope', myVar);
+```
+
 # --solutions--
 
+```js
+function myLocalScope() {
+
+  // Only change code below this line
+  var myVar;
+  console.log('inside myLocalScope', myVar);
+}
+myLocalScope();
+
+// Run and check the console
+// myVar is not defined outside of myLocalScope
+console.log('outside myLocalScope', myVar);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/logical-order-in-if-else-statements.md

@@ -4,6 +4,7 @@ title: if else 语句中的逻辑顺序
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cwNvMUV'
 forumTopicId: 18228
+dashedName: logical-order-in-if-else-statements
 ---
 
 # --description--
@@ -73,5 +74,34 @@ assert(orderMyLogic(6) === 'Less than 10');
 assert(orderMyLogic(11) === 'Greater than or equal to 10');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function orderMyLogic(val) {
+  if (val < 10) {
+    return "Less than 10";
+  } else if (val < 5) {
+    return "Less than 5";
+  } else {
+    return "Greater than or equal to 10";
+  }
+}
+
+orderMyLogic(7);
+```
+
 # --solutions--
 
+```js
+function orderMyLogic(val) {
+  if(val < 5) {
+    return "Less than 5";
+  } else if (val < 10) {
+    return "Less than 10";
+  } else {
+    return "Greater than or equal to 10";
+  }
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-pop.md

@@ -4,6 +4,7 @@ title: 使用 pop() 操作数组
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cRbVZAB'
 forumTopicId: 18236
+dashedName: manipulate-arrays-with-pop
 ---
 
 # --description--
@@ -61,5 +62,27 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(y, z){return 'myArray = ' + JSON.stringify(y) + ' & removedFromMyArray = ' + JSON.stringify(z);})(myArray, removedFromMyArray);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [["John", 23], ["cat", 2]];
+
+// Only change code below this line
+var removedFromMyArray;
+```
+
 # --solutions--
 
+```js
+var myArray = [["John", 23], ["cat", 2]];
+var removedFromMyArray = myArray.pop();
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-push.md

@@ -4,6 +4,7 @@ title: 使用 push() 操作数组
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cnqmVtJ'
 forumTopicId: 18237
+dashedName: manipulate-arrays-with-push
 ---
 
 # --description--
@@ -45,5 +46,26 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return 'myArray = ' + JSON.stringify(z);})(myArray);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [["John", 23], ["cat", 2]];
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myArray = [["John", 23], ["cat", 2]];
+myArray.push(["dog",3]);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-shift.md

@@ -4,6 +4,7 @@ title: 使用 shift() 操作数组
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cRbVETW'
 forumTopicId: 18238
+dashedName: manipulate-arrays-with-shift
 ---
 
 # --description--
@@ -50,5 +51,29 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(y, z){return 'myArray = ' + JSON.stringify(y) + ' & removedFromMyArray = ' + JSON.stringify(z);})(myArray, removedFromMyArray);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [["John", 23], ["dog", 3]];
+
+// Only change code below this line
+var removedFromMyArray;
+```
+
 # --solutions--
 
+```js
+var myArray = [["John", 23], ["dog", 3]];
+
+// Only change code below this line
+var removedFromMyArray = myArray.shift();
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-unshift.md

@@ -4,6 +4,7 @@ title: 使用 unshift() 操作数组
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/ckNDESv'
 forumTopicId: 18239
+dashedName: manipulate-arrays-with-unshift
 ---
 
 # --description--
@@ -40,5 +41,28 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(y, z){return 'myArray = ' + JSON.stringify(y);})(myArray);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [["John", 23], ["dog", 3]];
+myArray.shift();
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myArray = [["John", 23], ["dog", 3]];
+myArray.shift();
+myArray.unshift(["Paul", 35]);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/manipulating-complex-objects.md

@@ -4,6 +4,7 @@ title: 操作复杂对象
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c9yNMfR'
 forumTopicId: 18208
+dashedName: manipulating-complex-objects
 ---
 
 # --description--
@@ -120,5 +121,57 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(x){ if (Array.isArray(x)) { return JSON.stringify(x); } return "myMusic is not an array"})(myMusic);
+```
+
+## --seed-contents--
+
+```js
+var myMusic = [
+  {
+    "artist": "Billy Joel",
+    "title": "Piano Man",
+    "release_year": 1973,
+    "formats": [
+      "CD",
+      "8T",
+      "LP"
+    ],
+    "gold": true
+  }
+  // Add a record here
+];
+```
+
 # --solutions--
 
+```js
+var myMusic = [
+  {
+    "artist": "Billy Joel",
+    "title": "Piano Man",
+    "release_year": 1973,
+    "formats": [
+      "CS",
+      "8T",
+      "LP" ],
+    "gold": true
+  },
+  {
+    "artist": "ABBA",
+    "title": "Ring Ring",
+    "release_year": 1973,
+    "formats": [
+      "CS",
+      "8T",
+      "LP",
+    "CD",
+  ]
+  }
+];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/modify-array-data-with-indexes.md

@@ -4,6 +4,7 @@ title: 通过索引修改数组中的数据
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/czQM4A8'
 forumTopicId: 18241
+dashedName: modify-array-data-with-indexes
 ---
 
 # --description--
@@ -59,5 +60,26 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myArray !== "undefined"){(function(){return myArray;})();}
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myArray = [18,64,99];
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myArray = [18,64,99];
+myArray[0] = 45;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/multiple-identical-options-in-switch-statements.md

@@ -4,6 +4,7 @@ title: 在 Switch 语句添加多个相同选项
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cdBKWCV'
 forumTopicId: 18242
+dashedName: multiple-identical-options-in-switch-statements
 ---
 
 # --description--
@@ -102,5 +103,47 @@ assert(!/else/g.test(code) || !/if/g.test(code));
 assert(code.match(/case/g).length === 9);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function sequentialSizes(val) {
+  var answer = "";
+  // Only change code below this line
+
+
+
+  // Only change code above this line
+  return answer;
+}
+
+sequentialSizes(1);
+```
+
 # --solutions--
 
+```js
+function sequentialSizes(val) {
+  var answer = "";
+
+  switch(val) {
+    case 1:
+    case 2:
+    case 3:
+      answer = "Low";
+      break;
+    case 4:
+    case 5:
+    case 6:
+      answer = "Mid";
+      break;
+    case 7:
+    case 8:
+    case 9:
+      answer = "High";
+  }
+
+  return answer;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/multiply-two-decimals-with-javascript.md

@@ -4,6 +4,7 @@ title: 两个小数相乘
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/ce2GeHq'
 forumTopicId: 301173
+dashedName: multiply-two-decimals-with-javascript
 ---
 
 # --description--
@@ -30,5 +31,22 @@ assert(product === 5.0);
 assert(/\*/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(y){return 'product = '+y;})(product);
+```
+
+## --seed-contents--
+
+```js
+var product = 2.0 * 0.0;
+```
+
 # --solutions--
 
+```js
+var product = 2.0 * 2.5;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/multiply-two-numbers-with-javascript.md

@@ -4,6 +4,7 @@ title: 乘法运算
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cP3y3Aq'
 forumTopicId: 18243
+dashedName: multiply-two-numbers-with-javascript
 ---
 
 # --description--
@@ -36,5 +37,22 @@ assert(product === 80);
 assert(/\*/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return 'product = '+z;})(product);
+```
+
+## --seed-contents--
+
+```js
+var product = 8 * 0;
+```
+
 # --solutions--
 
+```js
+var product = 8 * 10;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/nest-one-array-within-another-array.md

@@ -4,6 +4,7 @@ title: 将一个数组嵌套在另一个数组中
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/crZQZf8'
 forumTopicId: 18247
+dashedName: nest-one-array-within-another-array
 ---
 
 # --description--
@@ -22,5 +23,23 @@ forumTopicId: 18247
 assert(Array.isArray(myArray) && myArray.some(Array.isArray));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+if(typeof myArray !== "undefined"){(function(){return myArray;})();}
+```
+
+## --seed-contents--
+
+```js
+// Only change code below this line
+var myArray = [];
+```
+
 # --solutions--
 
+```js
+var myArray = [[1,2,3]];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/nesting-for-loops.md

@@ -4,6 +4,7 @@ title: 循环嵌套
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cRn6GHM'
 forumTopicId: 18248
+dashedName: nesting-for-loops
 ---
 
 # --description--
@@ -59,5 +60,34 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function multiplyAll(arr) {
+  var product = 1;
+  // Only change code below this line
+
+  // Only change code above this line
+  return product;
+}
+
+multiplyAll([[1,2],[3,4],[5,6,7]]);
+```
+
 # --solutions--
 
+```js
+function multiplyAll(arr) {
+  var product = 1;
+  for (var i = 0; i < arr.length; i++) {
+    for (var j = 0; j < arr[i].length; j++) {
+      product *= arr[i][j];
+    }
+  }
+  return product;
+}
+
+multiplyAll([[1,2],[3,4],[5,6,7]]);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/passing-values-to-functions-with-arguments.md

@@ -4,6 +4,7 @@ title: 将值传递给带有参数的函数
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cy8rahW'
 forumTopicId: 18254
+dashedName: passing-values-to-functions-with-arguments
 ---
 
 # --description--
@@ -60,5 +61,55 @@ assert(logOutput == 16);
 assert(/^\s*functionWithArgs\s*\(\s*\d+\s*,\s*\d+\s*\)\s*;?/m.test(code));
 ```
 
+# --seed--
+
+## --before-user-code--
+
+```js
+var logOutput = "";
+var originalConsole = console
+function capture() {
+    var nativeLog = console.log;
+    console.log = function (message) {
+        if(message) logOutput = JSON.stringify(message).trim();
+        if(nativeLog.apply) {
+          nativeLog.apply(originalConsole, arguments);
+        } else {
+          var nativeMsg = Array.prototype.slice.apply(arguments).join(' ');
+          nativeLog(nativeMsg);
+        }
+    };
+}
+
+function uncapture() {
+  console.log = originalConsole.log;
+}
+
+capture();
+```
+
+## --after-user-code--
+
+```js
+uncapture();
+
+if (typeof functionWithArgs !== "function") { 
+  (function() { return "functionWithArgs is not defined"; })();
+} else {
+  (function() { return logOutput || "console.log never called"; })();
+}
+```
+
+## --seed-contents--
+
+```js
+```
+
 # --solutions--
 
+```js
+function functionWithArgs(a, b) {
+  console.log(a + b);
+}
+functionWithArgs(10, 5);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/practice-comparing-different-values.md

@@ -4,6 +4,7 @@ title: 比较不同值
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cm8PqCa'
 forumTopicId: 301174
+dashedName: practice-comparing-different-values
 ---
 
 # --description--
@@ -53,5 +54,29 @@ assert(compareEquality('20', 20) === 'Not Equal');
 assert(code.match(/===/g));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+function compareEquality(a, b) {
+  if (a == b) { // Change this line
+    return "Equal";
+  }
+  return "Not Equal";
+}
+
+compareEquality(10, "10");
+```
+
 # --solutions--
 
+```js
+function compareEquality(a,b) {
+  if (a === b) {
+    return "Equal";
+  }
+  return "Not Equal";
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/profile-lookup.md

@@ -4,6 +4,7 @@ title: 资料查找
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cDqW2Cg'
 forumTopicId: 18259
+dashedName: profile-lookup
 ---
 
 # --description--
@@ -61,5 +62,90 @@ assert(lookUpProfile('Bob', 'potato') === 'No such contact');
 assert(lookUpProfile('Akira', 'address') === 'No such property');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+var contacts = [
+    {
+        "firstName": "Akira",
+        "lastName": "Laine",
+        "number": "0543236543",
+        "likes": ["Pizza", "Coding", "Brownie Points"]
+    },
+    {
+        "firstName": "Harry",
+        "lastName": "Potter",
+        "number": "0994372684",
+        "likes": ["Hogwarts", "Magic", "Hagrid"]
+    },
+    {
+        "firstName": "Sherlock",
+        "lastName": "Holmes",
+        "number": "0487345643",
+        "likes": ["Intriguing Cases", "Violin"]
+    },
+    {
+        "firstName": "Kristian",
+        "lastName": "Vos",
+        "number": "unknown",
+        "likes": ["JavaScript", "Gaming", "Foxes"]
+    }
+];
+
+
+function lookUpProfile(name, prop){
+// Only change code below this line
+
+// Only change code above this line
+}
+
+lookUpProfile("Akira", "likes");
+```
+
 # --solutions--
 
+```js
+var contacts = [
+    {
+        "firstName": "Akira",
+        "lastName": "Laine",
+        "number": "0543236543",
+        "likes": ["Pizza", "Coding", "Brownie Points"]
+    },
+    {
+        "firstName": "Harry",
+        "lastName": "Potter",
+        "number": "0994372684",
+        "likes": ["Hogwarts", "Magic", "Hagrid"]
+    },
+    {
+        "firstName": "Sherlock",
+        "lastName": "Holmes",
+        "number": "0487345643",
+        "likes": ["Intriguing Cases", "Violin"]
+    },
+    {
+        "firstName": "Kristian",
+        "lastName": "Vos",
+        "number": "unknown",
+        "likes": ["JavaScript", "Gaming", "Foxes"]
+    },
+];
+
+
+//Write your function in between these comments
+function lookUpProfile(name, prop){
+    for(var i in contacts){
+      if(contacts[i].firstName === name) {
+        return contacts[i][prop] || "No such property";
+      }
+    }
+   return "No such contact";
+}
+//Write your function in between these comments
+
+lookUpProfile("Akira", "likes");
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/quoting-strings-with-single-quotes.md

@@ -4,6 +4,7 @@ title: 用单引号引用字符串
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cbQmnhM'
 forumTopicId: 18260
+dashedName: quoting-strings-with-single-quotes
 ---
 
 # --description--
@@ -56,5 +57,22 @@ assert(
 assert(code.match(/"/g).length === 4 && code.match(/'/g).length === 2);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function() { return "myStr = " + myStr; })();
+```
+
+## --seed-contents--
+
+```js
+var myStr = "<a href=\"http://www.example.com\" target=\"_blank\">Link</a>";
+```
+
 # --solutions--
 
+```js
+var myStr = '<a href="http://www.example.com" target="_blank">Link</a>';
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/record-collection.md

@@ -4,6 +4,7 @@ title: 记录集合
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c4mpysg'
 forumTopicId: 18261
+dashedName: record-collection
 ---
 
 # --description--
@@ -93,5 +94,97 @@ assert(!collection[2548].hasOwnProperty('tracks'));
 assert(updateRecords(1245, 'album', 'Riptide')[1245]['album'] === 'Riptide');
 ```
 
+# --seed--
+
+## --before-user-code--
+
+```js
+const _recordCollection = {
+  2548: {
+    albumTitle: 'Slippery When Wet',
+    artist: 'Bon Jovi',
+    tracks: ['Let It Rock', 'You Give Love a Bad Name']
+  },
+  2468: {
+    albumTitle: '1999',
+    artist: 'Prince',
+    tracks: ['1999', 'Little Red Corvette']
+  },
+  1245: {
+    artist: 'Robert Palmer',
+    tracks: []
+  },
+  5439: {
+    albumTitle: 'ABBA Gold'
+  }
+};
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var collection = {
+  2548: {
+    albumTitle: 'Slippery When Wet',
+    artist: 'Bon Jovi',
+    tracks: ['Let It Rock', 'You Give Love a Bad Name']
+  },
+  2468: {
+    albumTitle: '1999',
+    artist: 'Prince',
+    tracks: ['1999', 'Little Red Corvette']
+  },
+  1245: {
+    artist: 'Robert Palmer',
+    tracks: []
+  },
+  5439: {
+    albumTitle: 'ABBA Gold'
+  }
+};
+
+// Only change code below this line
+function updateRecords(object, id, prop, value) {
+  return object;
+}
+
+updateRecords(collection, 5439, 'artist', 'ABBA');
+```
+
 # --solutions--
 
+```js
+var collection = {
+  2548: {
+    albumTitle: 'Slippery When Wet',
+    artist: 'Bon Jovi',
+    tracks: ['Let It Rock', 'You Give Love a Bad Name']
+  },
+  2468: {
+    albumTitle: '1999',
+    artist: 'Prince',
+    tracks: ['1999', 'Little Red Corvette']
+  },
+  1245: {
+    artist: 'Robert Palmer',
+    tracks: []
+  },
+  5439: {
+    albumTitle: 'ABBA Gold'
+  }
+};
+
+// Only change code below this line
+function updateRecords(object, id, prop, value) {
+  if (value === '') delete object[id][prop];
+  else if (prop === 'tracks') {
+    object[id][prop] = object[id][prop] || [];
+    object[id][prop].push(value);
+  } else {
+    object[id][prop] = value;
+  }
+
+  return object;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/replace-loops-using-recursion.md

@@ -5,6 +5,7 @@ challengeType: 1
 videoUrl: >-
   https://www.freecodecamp.org/news/how-recursion-works-explained-with-flowcharts-and-a-video-de61f40cb7f9/
 forumTopicId: 301175
+dashedName: replace-loops-using-recursion
 ---
 
 # --description--
@@ -67,5 +68,28 @@ assert(!removeJSComments(code).match(/for|while|forEach|map|filter|reduce/g));
 assert(removeJSComments(sum.toString()).match(/sum\(.*\)/g).length > 1);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function sum(arr, n) {
+  // Only change code below this line
+
+  // Only change code above this line
+}
+```
+
 # --solutions--
 
+```js
+function sum(arr, n) {
+  // Only change code below this line
+  if(n <= 0) {
+    return 0;
+  } else {
+    return sum(arr, n - 1) + arr[n - 1];
+  }
+  // Only change code above this line
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/replacing-if-else-chains-with-switch.md

@@ -4,6 +4,7 @@ title: 用一个 Switch 语句来替代多个 if else 语句
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c3JE8fy'
 forumTopicId: 18266
+dashedName: replacing-if-else-chains-with-switch
 ---
 
 # --description--
@@ -101,5 +102,56 @@ assert(chainToSwitch('John') === '');
 assert(chainToSwitch(156) === '');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function chainToSwitch(val) {
+  var answer = "";
+  // Only change code below this line
+
+  if (val === "bob") {
+    answer = "Marley";
+  } else if (val === 42) {
+    answer = "The Answer";
+  } else if (val === 1) {
+    answer = "There is no #1";
+  } else if (val === 99) {
+    answer = "Missed me by this much!";
+  } else if (val === 7) {
+    answer = "Ate Nine";
+  }
+
+  // Only change code above this line
+  return answer;
+}
+
+chainToSwitch(7);
+```
+
 # --solutions--
 
+```js
+function chainToSwitch(val) {
+  var answer = "";
+
+  switch(val) {
+    case "bob":
+      answer = "Marley";
+      break;
+    case 42:
+      answer = "The Answer";
+      break;
+    case 1:
+      answer = "There is no #1";
+      break;
+    case 99:
+      answer = "Missed me by this much!";
+      break;
+    case 7:
+      answer = "Ate Nine";
+  }
+  return answer;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/return-a-value-from-a-function-with-return.md

@@ -4,6 +4,7 @@ title: 函数可以返回某个值
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cy87wue'
 forumTopicId: 18271
+dashedName: return-a-value-from-a-function-with-return
 ---
 
 # --description--
@@ -51,5 +52,18 @@ assert(timesFive(2) === 10);
 assert(timesFive(0) === 0);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+```
+
 # --solutions--
 
+```js
+function timesFive(num) {
+  return num * 5;
+}
+timesFive(10);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/return-early-pattern-for-functions.md

@@ -4,6 +4,7 @@ title: 函数执行到 return 语句就结束
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cQe39Sq'
 forumTopicId: 18272
+dashedName: return-early-pattern-for-functions
 ---
 
 # --description--
@@ -68,5 +69,32 @@ assert(abTest(2, 8) === 18);
 assert(abTest(3, 3) === 12);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+function abTest(a, b) {
+  // Only change code below this line
+
+
+
+  // Only change code above this line
+
+  return Math.round(Math.pow(Math.sqrt(a) + Math.sqrt(b), 2));
+}
+
+abTest(2,2);
+```
+
 # --solutions--
 
+```js
+function abTest(a, b) {
+  if(a < 0 || b < 0) {
+    return undefined;
+  }
+  return Math.round(Math.pow(Math.sqrt(a) + Math.sqrt(b), 2));
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/returning-boolean-values-from-functions.md

@@ -4,6 +4,7 @@ title: 从函数返回布尔值
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cp62qAQ'
 forumTopicId: 18273
+dashedName: returning-boolean-values-from-functions
 ---
 
 # --description--
@@ -54,5 +55,28 @@ assert(isLess(15, 10) === false);
 assert(!/if|else/g.test(code));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function isLess(a, b) {
+  // Only change code below this line
+  if (a < b) {
+    return true;
+  } else {
+    return false;
+  }
+  // Only change code above this line
+}
+
+isLess(10, 15);
+```
+
 # --solutions--
 
+```js
+function isLess(a, b) {
+  return a < b;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/selecting-from-many-options-with-switch-statements.md

@@ -4,6 +4,7 @@ title: 使用 Switch 语句从许多选项中进行选择
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c4mv4fm'
 forumTopicId: 18277
+dashedName: selecting-from-many-options-with-switch-statements
 ---
 
 # --description--
@@ -71,5 +72,43 @@ assert(!/else/g.test(code) || !/if/g.test(code));
 assert(code.match(/break/g).length > 2);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function caseInSwitch(val) {
+  var answer = "";
+  // Only change code below this line
+
+
+
+  // Only change code above this line
+  return answer;
+}
+
+caseInSwitch(1);
+```
+
 # --solutions--
 
+```js
+function caseInSwitch(val) {
+  var answer = "";
+
+  switch(val) {
+    case 1:
+      answer = "alpha";
+      break;
+    case 2:
+      answer = "beta";
+      break;
+    case 3:
+      answer = "gamma";
+      break;
+    case 4:
+      answer = "delta";
+  }
+  return answer;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/shopping-list.md

@@ -4,6 +4,7 @@ title: 购物清单
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c9MEKHZ'
 forumTopicId: 18280
+dashedName: shopping-list
 ---
 
 # --description--
@@ -42,5 +43,53 @@ assert(hasNumber);
 assert(count > 4);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+var count = 0;
+var isArray = false;
+var hasString = false;
+var hasNumber = false;
+(function(list){
+  if(Array.isArray(myList)) {
+    isArray = true;
+    if(myList.length > 0) {
+      hasString = true;
+      hasNumber = true;
+      for (var elem of myList) {
+        if(!elem || !elem[0] || typeof elem[0] !== 'string') {
+          hasString = false;
+        }
+        if(!elem || typeof elem[1] !== 'number') {
+          hasNumber = false;
+        }
+      }
+    }
+    count = myList.length;
+    return JSON.stringify(myList);
+  } else {
+    return "myList is not an array";
+  }
+
+})(myList);
+```
+
+## --seed-contents--
+
+```js
+var myList = [];
+```
+
 # --solutions--
 
+```js
+var myList = [
+  ["Candy", 10],
+  ["Potatoes", 12],
+  ["Eggs", 12],
+  ["Catfood", 1],
+  ["Toads", 9]
+];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/stand-in-line.md

@@ -4,6 +4,7 @@ title: 排队
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/ca8Q8tP'
 forumTopicId: 18307
+dashedName: stand-in-line
 ---
 
 # --description--
@@ -49,5 +50,69 @@ nextInLine(testArr, 10);
 assert(testArr[4] === 10);
 ```
 
+# --seed--
+
+## --before-user-code--
+
+```js
+var logOutput = [];
+var originalConsole = console
+function capture() {
+    var nativeLog = console.log;
+    console.log = function (message) {
+        logOutput.push(message);
+        if(nativeLog.apply) {
+          nativeLog.apply(originalConsole, arguments);
+        } else {
+          var nativeMsg = Array.prototype.slice.apply(arguments).join(' ');
+          nativeLog(nativeMsg);
+        }
+    };
+}
+
+function uncapture() {
+  console.log = originalConsole.log;
+}
+
+capture();
+```
+
+## --after-user-code--
+
+```js
+uncapture();
+testArr = [1,2,3,4,5];
+(function() { return logOutput.join("\n");})();
+```
+
+## --seed-contents--
+
+```js
+function nextInLine(arr, item) {
+  // Only change code below this line
+  
+  return item;
+  // Only change code above this line
+  
+
+}
+
+// Setup
+var testArr = [1,2,3,4,5];
+
+// Display code
+console.log("Before: " + JSON.stringify(testArr));
+console.log(nextInLine(testArr, 6));
+console.log("After: " + JSON.stringify(testArr));
+```
+
 # --solutions--
 
+```js
+var testArr = [ 1,2,3,4,5];
+
+function nextInLine(arr, item) {
+    arr.push(item);
+    return arr.shift();
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/store-multiple-values-in-one-variable-using-javascript-arrays.md

@@ -4,6 +4,7 @@ title: 使用 JavaScript 数组将多个值存储在一个变量中
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/crZQWAm'
 forumTopicId: 18309
+dashedName: store-multiple-values-in-one-variable-using-javascript-arrays
 ---
 
 # --description--
@@ -41,5 +42,23 @@ assert(typeof myArray[0] !== 'undefined' && typeof myArray[0] == 'string');
 assert(typeof myArray[1] !== 'undefined' && typeof myArray[1] == 'number');
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return z;})(myArray);
+```
+
+## --seed-contents--
+
+```js
+// Only change code below this line
+var myArray = [];
+```
+
 # --solutions--
 
+```js
+var myArray = ["The Answer", 42];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/storing-values-with-the-assignment-operator.md

@@ -4,6 +4,7 @@ title: 使用赋值运算符存储值
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cEanysE'
 forumTopicId: 18310
+dashedName: storing-values-with-the-assignment-operator
 ---
 
 # --description--
@@ -55,5 +56,34 @@ assert(typeof b === 'number' && b === 7);
 assert(/b\s*=\s*a\s*;/g.test(code));
 ```
 
+# --seed--
+
+## --before-user-code--
+
+```js
+if (typeof a != 'undefined') {
+  a = undefined;
+}
+```
+
+## --after-user-code--
+
+```js
+(function(a){return "a = " + a;})(a);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var a;
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var a;
+a = 7;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/subtract-one-number-from-another-with-javascript.md

@@ -4,6 +4,7 @@ title: 减法运算
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cP3yQtk'
 forumTopicId: 18314
+dashedName: subtract-one-number-from-another-with-javascript
 ---
 
 # --description--
@@ -36,5 +37,22 @@ assert(difference === 12);
 assert(/var\s*difference\s*=\s*45\s*-\s*[0-9]*;(?!\s*[a-zA-Z0-9]+)/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return 'difference = '+z;})(difference);
+```
+
+## --seed-contents--
+
+```js
+var difference = 45 - 0;
+```
+
 # --solutions--
 
+```js
+var difference = 45 - 33;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/testing-objects-for-properties.md

@@ -4,6 +4,7 @@ title: 测试对象的属性
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cm8Q7Ua'
 forumTopicId: 18324
+dashedName: testing-objects-for-properties
 ---
 
 # --description--
@@ -45,5 +46,26 @@ assert(checkObj('pet') === 'kitten');
 assert(checkObj('house') === 'Not Found');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function checkObj(obj, checkProp) {
+  // Only change code below this line
+  return "Change Me!";
+  // Only change code above this line
+}
+```
+
 # --solutions--
 
+```js
+function checkObj(obj, checkProp) {
+  if(obj.hasOwnProperty(checkProp)) {
+    return obj[checkProp];
+  } else {
+    return "Not Found";
+  }
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/understand-string-immutability.md

@@ -4,6 +4,7 @@ title: 了解字符串的不变性
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cWPVaUR'
 forumTopicId: 18331
+dashedName: understand-string-immutability
 ---
 
 # --description--
@@ -42,5 +43,28 @@ assert(myStr === 'Hello World');
 assert(/myStr = "Jello World"/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(v){return "myStr = " + v;})(myStr);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myStr = "Jello World";
+
+// Only change code below this line
+myStr[0] = "H"; // Change this line
+// Only change code above this line
+```
+
 # --solutions--
 
+```js
+var myStr = "Jello World";
+myStr = "Hello World";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/understanding-boolean-values.md

@@ -4,6 +4,7 @@ title: 理解布尔值
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c9Me8t4'
 forumTopicId: 301176
+dashedName: understanding-boolean-values
 ---
 
 # --description--
@@ -31,5 +32,31 @@ assert(typeof welcomeToBooleans() === 'boolean');
 assert(welcomeToBooleans() === true);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+welcomeToBooleans();
+```
+
+## --seed-contents--
+
+```js
+function welcomeToBooleans() {
+
+  // Only change code below this line
+
+  return false; // Change this line
+
+  // Only change code above this line
+}
+```
+
 # --solutions--
 
+```js
+function welcomeToBooleans() {
+  return true; // Change this line
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/understanding-case-sensitivity-in-variables.md

@@ -4,6 +4,7 @@ title: 了解变量名区分大小写
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cd6GDcD'
 forumTopicId: 18334
+dashedName: understanding-case-sensitivity-in-variables
 ---
 
 # --description--
@@ -68,5 +69,30 @@ assert(code.match(/properCamelCase/g).length === 2);
 assert(code.match(/titleCaseOver/g).length === 2);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Variable declarations
+var StUdLyCapVaR;
+var properCamelCase;
+var TitleCaseOver;
+
+// Variable assignments
+STUDLYCAPVAR = 10;
+PRoperCAmelCAse = "A String";
+tITLEcASEoVER = 9000;
+```
+
 # --solutions--
 
+```js
+var studlyCapVar;
+var properCamelCase;
+var titleCaseOver;
+
+studlyCapVar = 10;
+properCamelCase = "A String";
+titleCaseOver = 9000;
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/understanding-undefined-value-returned-from-a-function.md

@@ -4,6 +4,7 @@ title: 函数也可以返回 undefined
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/ce2p7cL'
 forumTopicId: 301177
+dashedName: understanding-undefined-value-returned-from-a-function
 ---
 
 # --description--
@@ -57,5 +58,40 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+var sum = 0;
+
+function addThree() {
+  sum = sum + 3;
+}
+
+// Only change code below this line
+
+
+// Only change code above this line
+
+addThree();
+addFive();
+```
+
 # --solutions--
 
+```js
+var sum = 0;
+
+function addThree() {
+  sum = sum + 3;
+}
+
+function addFive() {
+  sum = sum + 5;
+}
+
+addThree();
+addFive();
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/understanding-uninitialized-variables.md

@@ -4,6 +4,7 @@ title: 理解未初始化的变量
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cBa2JAL'
 forumTopicId: 18335
+dashedName: understanding-uninitialized-variables
 ---
 
 # --description--
@@ -44,5 +45,35 @@ assert(
 );
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(a,b,c){ return "a = " + a + ", b = " + b + ", c = '" + c + "'"; })(a,b,c);
+```
+
+## --seed-contents--
+
+```js
+// Only change code below this line
+var a;
+var b;
+var c;
+// Only change code above this line
+
+a = a + 1;
+b = b + 5;
+c = c + " String!";
+```
+
 # --solutions--
 
+```js
+var a = 5;
+var b = 10;
+var c = "I am a";
+a = a + 1;
+b = b + 5;
+c = c + " String!";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/updating-object-properties.md

@@ -4,6 +4,7 @@ title: 更新对象属性
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/c9yEJT4'
 forumTopicId: 18336
+dashedName: updating-object-properties
 ---
 
 # --description--
@@ -41,5 +42,36 @@ assert(/happy coder/gi.test(myDog.name));
 assert(/"name": "Coder"/.test(code));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(z){return z;})(myDog);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var myDog = {
+  "name": "Coder",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["freeCodeCamp Campers"]
+};
+
+// Only change code below this line
+```
+
 # --solutions--
 
+```js
+var myDog = {
+  "name": "Coder",
+  "legs": 4,
+  "tails": 1,
+  "friends": ["freeCodeCamp Campers"]
+};
+myDog.name = "Happy Coder";
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-first-character-in-a-string.md

@@ -4,6 +4,7 @@ title: 使用方括号查找字符串中的第一个字符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/ca8JwhW'
 forumTopicId: 18341
+dashedName: use-bracket-notation-to-find-the-first-character-in-a-string
 ---
 
 # --description--
@@ -35,5 +36,31 @@ assert(firstLetterOfLastName === 'L');
 assert(code.match(/firstLetterOfLastName\s*?=\s*?lastName\[.*?\]/));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(v){return v;})(firstLetterOfLastName);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var firstLetterOfLastName = "";
+var lastName = "Lovelace";
+
+// Only change code below this line
+firstLetterOfLastName = lastName; // Change this line
+```
+
 # --solutions--
 
+```js
+var firstLetterOfLastName = "";
+var lastName = "Lovelace";
+
+// Only change code below this line
+firstLetterOfLastName = lastName[0];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-last-character-in-a-string.md

@@ -4,6 +4,7 @@ title: 使用方括号查找字符串中的最后一个字符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cBZQGcv'
 forumTopicId: 18342
+dashedName: use-bracket-notation-to-find-the-last-character-in-a-string
 ---
 
 # --description--
@@ -30,5 +31,27 @@ assert(lastLetterOfLastName === 'e');
 assert(code.match(/\.length/g).length === 2);
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(v){return v;})(lastLetterOfLastName);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var lastName = "Lovelace";
+
+// Only change code below this line
+var lastLetterOfLastName = lastName; // Change this line
+```
+
 # --solutions--
 
+```js
+var lastName = "Lovelace";
+var lastLetterOfLastName = lastName[lastName.length - 1];
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/use-bracket-notation-to-find-the-nth-character-in-a-string.md

@@ -4,6 +4,7 @@ title: 使用方括号查找字符串中的第N个字符
 challengeType: 1
 videoUrl: 'https://scrimba.com/c/cWPVJua'
 forumTopicId: 18343
+dashedName: use-bracket-notation-to-find-the-nth-character-in-a-string
 ---
 
 # --description--
@@ -33,5 +34,27 @@ assert(thirdLetterOfLastName === 'v');
 assert(code.match(/thirdLetterOfLastName\s*?=\s*?lastName\[.*?\]/));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+(function(v){return v;})(thirdLetterOfLastName);
+```
+
+## --seed-contents--
+
+```js
+// Setup
+var lastName = "Lovelace";
+
+// Only change code below this line
+var thirdLetterOfLastName = lastName; // Change this line
+```
+
 # --solutions--
 
+```js
+var lastName = "Lovelace";
+var thirdLetterOfLastName = lastName[2];
+```