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/functional-programming/add-elements-to-the-end-of-an-array-using-concat-instead-of-push.md

@@ -3,6 +3,7 @@ id: 587d7da9367417b2b2512b67
 title: 使用 concat 而不是 push 将元素添加到数组的末尾
 challengeType: 1
 forumTopicId: 301226
+dashedName: add-elements-to-the-end-of-an-array-using-concat-instead-of-push
 ---
 
 # --description--
@@ -59,5 +60,29 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function nonMutatingPush(original, newItem) {
+  // Only change code below this line
+  return original.push(newItem);
+
+  // Only change code above this line
+}
+var first = [1, 2, 3];
+var second = [4, 5];
+nonMutatingPush(first, second);
+```
+
 # --solutions--
 
+```js
+function nonMutatingPush(original, newItem) {
+  return original.concat(newItem);
+}
+var first = [1, 2, 3];
+var second = [4, 5];
+nonMutatingPush(first, second);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/apply-functional-programming-to-convert-strings-to-url-slugs.md

@@ -3,6 +3,7 @@ id: 587d7dab367417b2b2512b6d
 title: 应用函数式编程将字符串转换为URL片段
 challengeType: 1
 forumTopicId: 301227
+dashedName: apply-functional-programming-to-convert-strings-to-url-slugs
 ---
 
 # --description--
@@ -66,5 +67,24 @@ assert(
 assert(urlSlug('Hold The Door') === 'hold-the-door');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Only change code below this line
+function urlSlug(title) {
+
+
+}
+// Only change code above this line
+```
+
 # --solutions--
 
+```js
+// Only change code below this line
+function urlSlug(title) {
+  return title.trim().split(/\s+/).join("-").toLowerCase();
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/avoid-mutations-and-side-effects-using-functional-programming.md

@@ -3,6 +3,7 @@ id: 587d7b8e367417b2b2512b5e
 title: 使用函数式编程避免变化和副作用
 challengeType: 1
 forumTopicId: 301228
+dashedName: avoid-mutations-and-side-effects-using-functional-programming
 ---
 
 # --description--
@@ -37,5 +38,28 @@ assert(fixedValue === 4);
 assert(newValue === 5);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// The global variable
+var fixedValue = 4;
+
+function incrementer () {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+```
+
 # --solutions--
 
+```js
+var fixedValue = 4
+
+function incrementer() {
+  return fixedValue + 1
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/combine-an-array-into-a-string-using-the-join-method.md

@@ -3,6 +3,7 @@ id: 587d7daa367417b2b2512b6c
 title: 使用 join 方法将数组组合成字符串
 challengeType: 1
 forumTopicId: 18221
+dashedName: combine-an-array-into-a-string-using-the-join-method
 ---
 
 # --description--
@@ -64,5 +65,26 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function sentensify(str) {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+sentensify("May-the-force-be-with-you");
+```
+
 # --solutions--
 
+```js
+function sentensify(str) {
+  // Only change code below this line
+  return str.split(/\W/).join(' ');
+  // Only change code above this line
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/combine-two-arrays-using-the-concat-method.md

@@ -3,6 +3,7 @@ id: 587d7da9367417b2b2512b66
 title: 使用 concat 方法组合两个数组
 challengeType: 1
 forumTopicId: 301229
+dashedName: combine-two-arrays-using-the-concat-method
 ---
 
 # --description--
@@ -47,5 +48,31 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function nonMutatingConcat(original, attach) {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+var first = [1, 2, 3];
+var second = [4, 5];
+nonMutatingConcat(first, second);
+```
+
 # --solutions--
 
+```js
+function nonMutatingConcat(original, attach) {
+  // Only change code below this line
+  return original.concat(attach);
+  // Only change code above this line
+}
+var first = [1, 2, 3];
+var second = [4, 5];
+nonMutatingConcat(first, second);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/implement-map-on-a-prototype.md

@@ -3,6 +3,7 @@ id: 587d7b8f367417b2b2512b62
 title: 在原型上实现 map 方法
 challengeType: 1
 forumTopicId: 301230
+dashedName: implement-map-on-a-prototype
 ---
 
 # --description--
@@ -33,5 +34,44 @@ assert(JSON.stringify(new_s) === JSON.stringify([46, 130, 196, 10]));
 assert(!code.match(/\.map/g));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// The global variable
+var s = [23, 65, 98, 5];
+
+Array.prototype.myMap = function(callback) {
+  var newArray = [];
+  // Only change code below this line
+
+  // Only change code above this line
+  return newArray;
+};
+
+var new_s = s.myMap(function(item) {
+  return item * 2;
+});
+```
+
 # --solutions--
 
+```js
+// the global Array
+var s = [23, 65, 98, 5];
+
+Array.prototype.myMap = function(callback) {
+  var newArray = [];
+  // Only change code below this line
+  for (var elem of this) {
+    newArray.push(callback(elem));
+  }
+  // Only change code above this line
+  return newArray;
+};
+
+var new_s = s.myMap(function(item) {
+  return item * 2;
+});
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/implement-the-filter-method-on-a-prototype.md

@@ -3,6 +3,7 @@ id: 587d7b8f367417b2b2512b64
 title: 在原型上实现 filter 方法
 challengeType: 1
 forumTopicId: 301231
+dashedName: implement-the-filter-method-on-a-prototype
 ---
 
 # --description--
@@ -29,5 +30,43 @@ assert(JSON.stringify(new_s) === JSON.stringify([23, 65, 5]));
 assert(!code.match(/\.filter/g));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// The global variable
+var s = [23, 65, 98, 5];
+
+Array.prototype.myFilter = function(callback) {
+  // Only change code below this line
+  var newArray = [];
+  // Only change code above this line
+  return newArray;
+};
+
+var new_s = s.myFilter(function(item) {
+  return item % 2 === 1;
+});
+```
+
 # --solutions--
 
+```js
+// the global Array
+var s = [23, 65, 98, 5];
+
+Array.prototype.myFilter = function(callback) {
+  var newArray = [];
+  // Only change code below this line
+  for (let i = 0; i < this.length; i++) {
+    if (callback(this[i])) newArray.push(this[i]);
+  }
+  // Only change code above this line
+  return newArray;
+};
+
+var new_s = s.myFilter(function(item) {
+  return item % 2 === 1;
+});
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/introduction-to-currying-and-partial-application.md

@@ -3,6 +3,7 @@ id: 587d7dab367417b2b2512b70
 title: 函数柯里化
 challengeType: 1
 forumTopicId: 301232
+dashedName: introduction-to-currying-and-partial-application
 ---
 
 # --description--
@@ -80,5 +81,22 @@ assert(add(11)(22)(33) === 66);
 assert(code.match(/[xyz]\s*?\+\s*?[xyz]\s*?\+\s*?[xyz]/g));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function add(x) {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+add(10)(20)(30);
+```
+
 # --solutions--
 
+```js
+const add = x => y => z => x + y + z
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/learn-about-functional-programming.md

@@ -3,6 +3,7 @@ id: 587d7b8d367417b2b2512b5b
 title: 学习函数式编程
 challengeType: 1
 forumTopicId: 301233
+dashedName: learn-about-functional-programming
 ---
 
 # --description--
@@ -39,5 +40,49 @@ assert(tea4TeamFCC.length === 40);
 assert(tea4TeamFCC[0] === 'greenTea');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Function that returns a string representing a cup of green tea
+const prepareTea = () => 'greenTea';
+
+/*
+Given a function (representing the tea type) and number of cups needed, the
+following function returns an array of strings (each representing a cup of
+a specific type of tea).
+*/
+const getTea = (numOfCups) => {
+  const teaCups = [];
+
+  for(let cups = 1; cups <= numOfCups; cups += 1) {
+    const teaCup = prepareTea();
+    teaCups.push(teaCup);
+  }
+  return teaCups;
+};
+
+// Only change code below this line
+const tea4TeamFCC = null;
+// Only change code above this line
+```
+
 # --solutions--
 
+```js
+const prepareTea = () => 'greenTea';
+
+const getTea = (numOfCups) => {
+  const teaCups = [];
+  
+  for(let cups = 1; cups <= numOfCups; cups += 1) {
+    const teaCup = prepareTea();
+    teaCups.push(teaCup);
+  }
+
+  return teaCups;
+};
+
+const tea4TeamFCC = getTea(40); 
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/pass-arguments-to-avoid-external-dependence-in-a-function.md

@@ -3,6 +3,7 @@ id: 587d7b8e367417b2b2512b5f
 title: 传递参数以避免函数中的外部依赖
 challengeType: 1
 forumTopicId: 301234
+dashedName: pass-arguments-to-avoid-external-dependence-in-a-function
 ---
 
 # --description--
@@ -45,5 +46,34 @@ assert(incrementer.length === 1);
 assert(newValue === 5);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// The global variable
+var fixedValue = 4;
+
+// Only change code below this line
+function incrementer () {
+
+
+  // Only change code above this line
+}
+```
+
 # --solutions--
 
+```js
+// The global variable
+var fixedValue = 4;
+
+// Only change code below this line
+function incrementer (fixedValue) {
+  return fixedValue + 1;
+
+  // Only change code above this line
+}
+
+  
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/refactor-global-variables-out-of-functions.md

@@ -3,6 +3,7 @@ id: 587d7b8f367417b2b2512b60
 title: 在函数中重构全局变量
 challengeType: 1
 forumTopicId: 301235
+dashedName: refactor-global-variables-out-of-functions
 ---
 
 # --description--
@@ -77,5 +78,62 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// The global variable
+var bookList = ["The Hound of the Baskervilles", "On The Electrodynamics of Moving Bodies", "Philosophiæ Naturalis Principia Mathematica", "Disquisitiones Arithmeticae"];
+
+// Change code below this line
+function add (bookName) {
+
+  bookList.push(bookName);
+  return bookList;
+  
+  // Change code above this line
+}
+
+// Change code below this line
+function remove (bookName) {
+  var book_index = bookList.indexOf(bookName);
+  if (book_index >= 0) {
+
+    bookList.splice(book_index, 1);
+    return bookList;
+
+    // Change code above this line
+    }
+}
+
+var newBookList = add(bookList, 'A Brief History of Time');
+var newerBookList = remove(bookList, 'On The Electrodynamics of Moving Bodies');
+var newestBookList = remove(add(bookList, 'A Brief History of Time'), 'On The Electrodynamics of Moving Bodies');
+
+console.log(bookList);
+```
+
 # --solutions--
 
+```js
+// The global variable
+var bookList = ["The Hound of the Baskervilles", "On The Electrodynamics of Moving Bodies", "Philosophiæ Naturalis Principia Mathematica", "Disquisitiones Arithmeticae"];
+
+function add (bookList, bookName) {
+  return [...bookList, bookName];
+}
+
+function remove (bookList, bookName) {
+  const bookListCopy = [...bookList];
+  const bookNameIndex = bookList.indexOf(bookName);
+  if (bookNameIndex >= 0) {
+    bookListCopy.splice(bookNameIndex, 1);
+  }
+  return bookListCopy;
+}
+
+var newBookList = add(bookList, 'A Brief History of Time');
+var newerBookList = remove(bookList, 'On The Electrodynamics of Moving Bodies');
+var newestBookList = remove(add(bookList, 'A Brief History of Time'), 'On The Electrodynamics of Moving Bodies');
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/remove-elements-from-an-array-using-slice-instead-of-splice.md

@@ -3,6 +3,7 @@ id: 9d7123c8c441eeafaeb5bdef
 title: 使用 slice 而不是 splice 从数组中移除元素
 challengeType: 1
 forumTopicId: 301236
+dashedName: remove-elements-from-an-array-using-slice-instead-of-splice
 ---
 
 # --description--
@@ -56,5 +57,29 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function nonMutatingSplice(cities) {
+  // Only change code below this line
+  return cities.splice(3);
+
+  // Only change code above this line
+}
+var inputCities = ["Chicago", "Delhi", "Islamabad", "London", "Berlin"];
+nonMutatingSplice(inputCities);
+```
+
 # --solutions--
 
+```js
+function nonMutatingSplice(cities) {
+  // Only change code below this line
+  return cities.slice(0,3);
+  // Only change code above this line
+}
+var inputCities = ["Chicago", "Delhi", "Islamabad", "London", "Berlin"];
+nonMutatingSplice(inputCities);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/return-a-sorted-array-without-changing-the-original-array.md

@@ -3,6 +3,7 @@ id: 587d7da9367417b2b2512b6a
 title: 在不更改原始数组的前提下返回排序后的数组
 challengeType: 1
 forumTopicId: 301237
+dashedName: return-a-sorted-array-without-changing-the-original-array
 ---
 
 # --description--
@@ -42,5 +43,29 @@ assert(
 assert(!nonMutatingSort.toString().match(/[23569]/g));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+var globalArray = [5, 6, 3, 2, 9];
+function nonMutatingSort(arr) {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+nonMutatingSort(globalArray);
+```
+
 # --solutions--
 
+```js
+var globalArray = [5, 6, 3, 2, 9];
+function nonMutatingSort(arr) {
+  // Only change code below this line
+  return [].concat(arr).sort((a,b) => a-b);
+  // Only change code above this line
+}
+nonMutatingSort(globalArray);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/return-part-of-an-array-using-the-slice-method.md

@@ -3,6 +3,7 @@ id: 587d7b90367417b2b2512b65
 title: 使用 slice 方法返回数组的一部分
 challengeType: 1
 forumTopicId: 301239
+dashedName: return-part-of-an-array-using-the-slice-method
 ---
 
 # --description--
@@ -65,5 +66,29 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function sliceArray(anim, beginSlice, endSlice) {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+var inputAnim = ["Cat", "Dog", "Tiger", "Zebra", "Ant"];
+sliceArray(inputAnim, 1, 3);
+```
+
 # --solutions--
 
+```js
+function sliceArray(anim, beginSlice, endSlice) {
+  // Only change code below this line
+  return anim.slice(beginSlice, endSlice)
+  // Only change code above this line
+}
+var inputAnim = ["Cat", "Dog", "Tiger", "Zebra", "Ant"];
+sliceArray(inputAnim, 1, 3);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/sort-an-array-alphabetically-using-the-sort-method.md

@@ -3,6 +3,7 @@ id: 587d7da9367417b2b2512b69
 title: 使用 sort 方法按字母顺序给数组排序
 challengeType: 1
 forumTopicId: 18303
+dashedName: sort-an-array-alphabetically-using-the-sort-method
 ---
 
 # --description--
@@ -70,5 +71,27 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function alphabeticalOrder(arr) {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);
+```
+
 # --solutions--
 
+```js
+function alphabeticalOrder(arr) {
+  // Only change code below this line
+  return arr.sort();
+  // Only change code above this line
+}
+alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/split-a-string-into-an-array-using-the-split-method.md

@@ -3,6 +3,7 @@ id: 587d7daa367417b2b2512b6b
 title: 使用 split 方法将字符串拆分成数组
 challengeType: 1
 forumTopicId: 18305
+dashedName: split-a-string-into-an-array-using-the-split-method
 ---
 
 # --description--
@@ -62,5 +63,26 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function splitify(str) {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+splitify("Hello World,I-am code");
+```
+
 # --solutions--
 
+```js
+function splitify(str) {
+  // Only change code below this line
+  return str.split(/\W/);
+  // Only change code above this line
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/understand-functional-programming-terminology.md

@@ -3,6 +3,7 @@ id: 587d7b8e367417b2b2512b5c
 title: 了解函数式编程术语
 challengeType: 1
 forumTopicId: 301240
+dashedName: understand-functional-programming-terminology
 ---
 
 # --description--
@@ -53,5 +54,59 @@ assert(tea4BlackTeamFCC.length === 13);
 assert(tea4BlackTeamFCC[0] === 'blackTea');
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// Function that returns a string representing a cup of green tea
+const prepareGreenTea = () => 'greenTea';
+
+// Function that returns a string representing a cup of black tea
+const prepareBlackTea = () => 'blackTea';
+
+/*
+Given a function (representing the tea type) and number of cups needed, the
+following function returns an array of strings (each representing a cup of
+a specific type of tea).
+*/
+const getTea = (prepareTea, numOfCups) => {
+  const teaCups = [];
+
+  for(let cups = 1; cups <= numOfCups; cups += 1) {
+    const teaCup = prepareTea();
+    teaCups.push(teaCup);
+  }
+  return teaCups;
+};
+
+// Only change code below this line
+const tea4GreenTeamFCC = null;
+const tea4BlackTeamFCC = null;
+// Only change code above this line
+
+console.log(
+  tea4GreenTeamFCC,
+  tea4BlackTeamFCC
+);
+```
+
 # --solutions--
 
+```js
+const prepareGreenTea = () => 'greenTea';
+const prepareBlackTea = () => 'blackTea';
+
+const getTea = (prepareTea, numOfCups) => {
+  const teaCups = [];
+
+  for(let cups = 1; cups <= numOfCups; cups += 1) {
+    const teaCup = prepareTea();
+    teaCups.push(teaCup);
+  }
+  return teaCups;
+};
+
+const tea4BlackTeamFCC = getTea(prepareBlackTea, 13);
+const tea4GreenTeamFCC = getTea(prepareGreenTea, 27);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/understand-the-hazards-of-using-imperative-code.md

@@ -3,6 +3,7 @@ id: 587d7b8e367417b2b2512b5d
 title: 了解使用命令式编程的危害
 challengeType: 1
 forumTopicId: 301241
+dashedName: understand-the-hazards-of-using-imperative-code
 ---
 
 # --description--
@@ -52,5 +53,93 @@ assert.deepEqual(finalTabs.tabs, [
 ]);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// tabs is an array of titles of each site open within the window
+var Window = function(tabs) {
+  this.tabs = tabs; // We keep a record of the array inside the object
+};
+
+// When you join two windows into one window
+Window.prototype.join = function (otherWindow) {
+  this.tabs = this.tabs.concat(otherWindow.tabs);
+  return this;
+};
+
+// When you open a new tab at the end
+Window.prototype.tabOpen = function (tab) {
+  this.tabs.push('new tab'); // Let's open a new tab for now
+  return this;
+};
+
+// When you close a tab
+Window.prototype.tabClose = function (index) {
+
+  // Only change code below this line
+
+  var tabsBeforeIndex = this.tabs.splice(0, index); // Get the tabs before the tab
+  var tabsAfterIndex = this.tabs.splice(index + 1); // Get the tabs after the tab
+
+  this.tabs = tabsBeforeIndex.concat(tabsAfterIndex); // Join them together
+
+  // Only change code above this line
+
+  return this;
+ };
+
+// Let's create three browser windows
+var workWindow = new Window(['GMail', 'Inbox', 'Work mail', 'Docs', 'freeCodeCamp']); // Your mailbox, drive, and other work sites
+var socialWindow = new Window(['FB', 'Gitter', 'Reddit', 'Twitter', 'Medium']); // Social sites
+var videoWindow = new Window(['Netflix', 'YouTube', 'Vimeo', 'Vine']); // Entertainment sites
+
+// Now perform the tab opening, closing, and other operations
+var finalTabs = socialWindow
+  .tabOpen() // Open a new tab for cat memes
+  .join(videoWindow.tabClose(2)) // Close third tab in video window, and join
+  .join(workWindow.tabClose(1).tabOpen());
+console.log(finalTabs.tabs);
+```
+
 # --solutions--
 
+```js
+// tabs is an array of titles of each site open within the window
+var Window = function(tabs) {
+  this.tabs = tabs; // We keep a record of the array inside the object
+};
+
+// When you join two windows into one window
+Window.prototype.join = function (otherWindow) {
+  this.tabs = this.tabs.concat(otherWindow.tabs);
+  return this;
+};
+
+// When you open a new tab at the end
+Window.prototype.tabOpen = function (tab) {
+  this.tabs.push('new tab'); // Let's open a new tab for now
+  return this;
+};
+
+// When you close a tab
+Window.prototype.tabClose = function (index) {
+  var tabsBeforeIndex = this.tabs.slice(0, index); // Get the tabs before the tab
+  var tabsAfterIndex = this.tabs.slice(index + 1); // Get the tabs after the tab
+
+  this.tabs = tabsBeforeIndex.concat(tabsAfterIndex); // Join them together
+  return this;
+ };
+
+// Let's create three browser windows
+var workWindow = new Window(['GMail', 'Inbox', 'Work mail', 'Docs', 'freeCodeCamp']); // Your mailbox, drive, and other work sites
+var socialWindow = new Window(['FB', 'Gitter', 'Reddit', 'Twitter', 'Medium']); // Social sites
+var videoWindow = new Window(['Netflix', 'YouTube', 'Vimeo', 'Vine']); //  Entertainment sites
+
+// Now perform the tab opening, closing, and other operations
+var finalTabs = socialWindow
+  .tabOpen() // Open a new tab for cat memes
+  .join(videoWindow.tabClose(2)) // Close third tab in video window, and join
+  .join(workWindow.tabClose(1).tabOpen());
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/use-higher-order-functions-map-filter-or-reduce-to-solve-a-complex-problem.md

@@ -3,6 +3,7 @@ id: 587d7b88367417b2b2512b45
 title: 使用高阶函数 map、filter 或者 reduce 来解决复杂问题
 challengeType: 1
 forumTopicId: 301311
+dashedName: use-higher-order-functions-map-filter-or-reduce-to-solve-a-complex-problem
 ---
 
 # --description--
@@ -62,5 +63,31 @@ assert.deepStrictEqual(squareList([-3.7, -5, 3, 10, 12.5, 7, -4.5, -17, 0.3]), [
 ]);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+const squareList = arr => {
+  // Only change code below this line
+  return arr;
+  // Only change code above this line
+};
+
+const squaredIntegers = squareList([-3, 4.8, 5, 3, -3.2]);
+console.log(squaredIntegers);
+```
+
 # --solutions--
 
+```js
+const squareList = arr => {
+  const positiveIntegers = arr.filter(num => {
+    return num >= 0 && Number.isInteger(num);
+  });
+  const squaredIntegers = positiveIntegers.map(num => {
+    return num ** 2;
+  });
+  return squaredIntegers;
+};
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/use-the-every-method-to-check-that-every-element-in-an-array-meets-a-criteria.md

@@ -3,6 +3,7 @@ id: 587d7dab367417b2b2512b6e
 title: 使用 every 方法检查数组中的每个元素是否符合条件
 challengeType: 1
 forumTopicId: 301312
+dashedName: use-the-every-method-to-check-that-every-element-in-an-array-meets-a-criteria
 ---
 
 # --description--
@@ -49,5 +50,27 @@ assert.isTrue(checkPositive([1, 2, 3, 4, 5]));
 assert.isFalse(checkPositive([1, -2, 3, -4, 5]));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function checkPositive(arr) {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+checkPositive([1, 2, 3, -4, 5]);
+```
+
 # --solutions--
 
+```js
+function checkPositive(arr) {
+  // Only change code below this line
+  return arr.every(num => num > 0);
+  // Only change code above this line
+}
+checkPositive([1, 2, 3, -4, 5]);
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/use-the-filter-method-to-extract-data-from-an-array.md

@@ -3,6 +3,7 @@ id: 587d7b8f367417b2b2512b63
 title: 使用 filter 方法从数组中提取数据
 challengeType: 1
 forumTopicId: 18179
+dashedName: use-the-filter-method-to-extract-data-from-an-array
 ---
 
 # --description--
@@ -63,5 +64,252 @@ assert.deepEqual(filteredList, [
 ]);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// The global variable
+var watchList = [
+  {
+    "Title": "Inception",
+    "Year": "2010",
+    "Rated": "PG-13",
+    "Released": "16 Jul 2010",
+    "Runtime": "148 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Christopher Nolan",
+    "Actors": "Leonardo DiCaprio, Joseph Gordon-Levitt, Ellen Page, Tom Hardy",
+    "Plot": "A thief, who steals corporate secrets through use of dream-sharing technology, is given the inverse task of planting an idea into the mind of a CEO.",
+    "Language": "English, Japanese, French",
+    "Country": "USA, UK",
+    "Awards": "Won 4 Oscars. Another 143 wins & 198 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjAxMzY3NjcxNF5BMl5BanBnXkFtZTcwNTI5OTM0Mw@@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.8",
+    "imdbVotes": "1,446,708",
+    "imdbID": "tt1375666",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Interstellar",
+    "Year": "2014",
+    "Rated": "PG-13",
+    "Released": "07 Nov 2014",
+    "Runtime": "169 min",
+    "Genre": "Adventure, Drama, Sci-Fi",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan, Christopher Nolan",
+    "Actors": "Ellen Burstyn, Matthew McConaughey, Mackenzie Foy, John Lithgow",
+    "Plot": "A team of explorers travel through a wormhole in space in an attempt to ensure humanity's survival.",
+    "Language": "English",
+    "Country": "USA, UK",
+    "Awards": "Won 1 Oscar. Another 39 wins & 132 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjIxNTU4MzY4MF5BMl5BanBnXkFtZTgwMzM4ODI3MjE@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.6",
+    "imdbVotes": "910,366",
+    "imdbID": "tt0816692",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "The Dark Knight",
+    "Year": "2008",
+    "Rated": "PG-13",
+    "Released": "18 Jul 2008",
+    "Runtime": "152 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan (screenplay), Christopher Nolan (screenplay), Christopher Nolan (story), David S. Goyer (story), Bob Kane (characters)",
+    "Actors": "Christian Bale, Heath Ledger, Aaron Eckhart, Michael Caine",
+    "Plot": "When the menace known as the Joker wreaks havoc and chaos on the people of Gotham, the caped crusader must come to terms with one of the greatest psychological tests of his ability to fight injustice.",
+    "Language": "English, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Won 2 Oscars. Another 146 wins & 142 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTMxNTMwODM0NF5BMl5BanBnXkFtZTcwODAyMTk2Mw@@._V1_SX300.jpg",
+    "Metascore": "82",
+    "imdbRating": "9.0",
+    "imdbVotes": "1,652,832",
+    "imdbID": "tt0468569",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Batman Begins",
+    "Year": "2005",
+    "Rated": "PG-13",
+    "Released": "15 Jun 2005",
+    "Runtime": "140 min",
+    "Genre": "Action, Adventure",
+    "Director": "Christopher Nolan",
+    "Writer": "Bob Kane (characters), David S. Goyer (story), Christopher Nolan (screenplay), David S. Goyer (screenplay)",
+    "Actors": "Christian Bale, Michael Caine, Liam Neeson, Katie Holmes",
+    "Plot": "After training with his mentor, Batman begins his fight to free crime-ridden Gotham City from the corruption that Scarecrow and the League of Shadows have cast upon it.",
+    "Language": "English, Urdu, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Nominated for 1 Oscar. Another 15 wins & 66 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BNTM3OTc0MzM2OV5BMl5BanBnXkFtZTYwNzUwMTI3._V1_SX300.jpg",
+    "Metascore": "70",
+    "imdbRating": "8.3",
+    "imdbVotes": "972,584",
+    "imdbID": "tt0372784",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Avatar",
+    "Year": "2009",
+    "Rated": "PG-13",
+    "Released": "18 Dec 2009",
+    "Runtime": "162 min",
+    "Genre": "Action, Adventure, Fantasy",
+    "Director": "James Cameron",
+    "Writer": "James Cameron",
+    "Actors": "Sam Worthington, Zoe Saldana, Sigourney Weaver, Stephen Lang",
+    "Plot": "A paraplegic marine dispatched to the moon Pandora on a unique mission becomes torn between following his orders and protecting the world he feels is his home.",
+    "Language": "English, Spanish",
+    "Country": "USA, UK",
+    "Awards": "Won 3 Oscars. Another 80 wins & 121 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTYwOTEwNjAzMl5BMl5BanBnXkFtZTcwODc5MTUwMw@@._V1_SX300.jpg",
+    "Metascore": "83",
+    "imdbRating": "7.9",
+    "imdbVotes": "876,575",
+    "imdbID": "tt0499549",
+    "Type": "movie",
+    "Response": "True"
+  }
+];
+
+// Only change code below this line
+
+var filteredList;
+
+// Only change code above this line
+
+console.log(filteredList);
+```
+
 # --solutions--
 
+```js
+// The global variable
+var watchList = [
+  {
+    "Title": "Inception",
+    "Year": "2010",
+    "Rated": "PG-13",
+    "Released": "16 Jul 2010",
+    "Runtime": "148 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Christopher Nolan",
+    "Actors": "Leonardo DiCaprio, Joseph Gordon-Levitt, Ellen Page, Tom Hardy",
+    "Plot": "A thief, who steals corporate secrets through use of dream-sharing technology, is given the inverse task of planting an idea into the mind of a CEO.",
+    "Language": "English, Japanese, French",
+    "Country": "USA, UK",
+    "Awards": "Won 4 Oscars. Another 143 wins & 198 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjAxMzY3NjcxNF5BMl5BanBnXkFtZTcwNTI5OTM0Mw@@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.8",
+    "imdbVotes": "1,446,708",
+    "imdbID": "tt1375666",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Interstellar",
+    "Year": "2014",
+    "Rated": "PG-13",
+    "Released": "07 Nov 2014",
+    "Runtime": "169 min",
+    "Genre": "Adventure, Drama, Sci-Fi",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan, Christopher Nolan",
+    "Actors": "Ellen Burstyn, Matthew McConaughey, Mackenzie Foy, John Lithgow",
+    "Plot": "A team of explorers travel through a wormhole in space in an attempt to ensure humanity's survival.",
+    "Language": "English",
+    "Country": "USA, UK",
+    "Awards": "Won 1 Oscar. Another 39 wins & 132 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjIxNTU4MzY4MF5BMl5BanBnXkFtZTgwMzM4ODI3MjE@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.6",
+    "imdbVotes": "910,366",
+    "imdbID": "tt0816692",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "The Dark Knight",
+    "Year": "2008",
+    "Rated": "PG-13",
+    "Released": "18 Jul 2008",
+    "Runtime": "152 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan (screenplay), Christopher Nolan (screenplay), Christopher Nolan (story), David S. Goyer (story), Bob Kane (characters)",
+    "Actors": "Christian Bale, Heath Ledger, Aaron Eckhart, Michael Caine",
+    "Plot": "When the menace known as the Joker wreaks havoc and chaos on the people of Gotham, the caped crusader must come to terms with one of the greatest psychological tests of his ability to fight injustice.",
+    "Language": "English, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Won 2 Oscars. Another 146 wins & 142 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTMxNTMwODM0NF5BMl5BanBnXkFtZTcwODAyMTk2Mw@@._V1_SX300.jpg",
+    "Metascore": "82",
+    "imdbRating": "9.0",
+    "imdbVotes": "1,652,832",
+    "imdbID": "tt0468569",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Batman Begins",
+    "Year": "2005",
+    "Rated": "PG-13",
+    "Released": "15 Jun 2005",
+    "Runtime": "140 min",
+    "Genre": "Action, Adventure",
+    "Director": "Christopher Nolan",
+    "Writer": "Bob Kane (characters), David S. Goyer (story), Christopher Nolan (screenplay), David S. Goyer (screenplay)",
+    "Actors": "Christian Bale, Michael Caine, Liam Neeson, Katie Holmes",
+    "Plot": "After training with his mentor, Batman begins his fight to free crime-ridden Gotham City from the corruption that Scarecrow and the League of Shadows have cast upon it.",
+    "Language": "English, Urdu, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Nominated for 1 Oscar. Another 15 wins & 66 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BNTM3OTc0MzM2OV5BMl5BanBnXkFtZTYwNzUwMTI3._V1_SX300.jpg",
+    "Metascore": "70",
+    "imdbRating": "8.3",
+    "imdbVotes": "972,584",
+    "imdbID": "tt0372784",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Avatar",
+    "Year": "2009",
+    "Rated": "PG-13",
+    "Released": "18 Dec 2009",
+    "Runtime": "162 min",
+    "Genre": "Action, Adventure, Fantasy",
+    "Director": "James Cameron",
+    "Writer": "James Cameron",
+    "Actors": "Sam Worthington, Zoe Saldana, Sigourney Weaver, Stephen Lang",
+    "Plot": "A paraplegic marine dispatched to the moon Pandora on a unique mission becomes torn between following his orders and protecting the world he feels is his home.",
+    "Language": "English, Spanish",
+    "Country": "USA, UK",
+    "Awards": "Won 3 Oscars. Another 80 wins & 121 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTYwOTEwNjAzMl5BMl5BanBnXkFtZTcwODc5MTUwMw@@._V1_SX300.jpg",
+    "Metascore": "83",
+    "imdbRating": "7.9",
+    "imdbVotes": "876,575",
+    "imdbID": "tt0499549",
+    "Type": "movie",
+    "Response": "True"
+  }
+];
+
+// Only change code below this line
+let filteredList = watchList.filter(e => e.imdbRating >= 8).map( ({Title: title, imdbRating: rating}) => ({title, rating}) );
+// Only change code above this line
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/use-the-map-method-to-extract-data-from-an-array.md

@@ -3,6 +3,7 @@ id: 587d7b8f367417b2b2512b61
 title: 使用 map 方法从数组中提取数据
 challengeType: 1
 forumTopicId: 18214
+dashedName: use-the-map-method-to-extract-data-from-an-array
 ---
 
 # --description--
@@ -73,5 +74,258 @@ assert(
 );
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// The global variable
+var watchList = [
+  {
+    "Title": "Inception",
+    "Year": "2010",
+    "Rated": "PG-13",
+    "Released": "16 Jul 2010",
+    "Runtime": "148 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Christopher Nolan",
+    "Actors": "Leonardo DiCaprio, Joseph Gordon-Levitt, Ellen Page, Tom Hardy",
+    "Plot": "A thief, who steals corporate secrets through use of dream-sharing technology, is given the inverse task of planting an idea into the mind of a CEO.",
+    "Language": "English, Japanese, French",
+    "Country": "USA, UK",
+    "Awards": "Won 4 Oscars. Another 143 wins & 198 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjAxMzY3NjcxNF5BMl5BanBnXkFtZTcwNTI5OTM0Mw@@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.8",
+    "imdbVotes": "1,446,708",
+    "imdbID": "tt1375666",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Interstellar",
+    "Year": "2014",
+    "Rated": "PG-13",
+    "Released": "07 Nov 2014",
+    "Runtime": "169 min",
+    "Genre": "Adventure, Drama, Sci-Fi",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan, Christopher Nolan",
+    "Actors": "Ellen Burstyn, Matthew McConaughey, Mackenzie Foy, John Lithgow",
+    "Plot": "A team of explorers travel through a wormhole in space in an attempt to ensure humanity's survival.",
+    "Language": "English",
+    "Country": "USA, UK",
+    "Awards": "Won 1 Oscar. Another 39 wins & 132 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjIxNTU4MzY4MF5BMl5BanBnXkFtZTgwMzM4ODI3MjE@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.6",
+    "imdbVotes": "910,366",
+    "imdbID": "tt0816692",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "The Dark Knight",
+    "Year": "2008",
+    "Rated": "PG-13",
+    "Released": "18 Jul 2008",
+    "Runtime": "152 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan (screenplay), Christopher Nolan (screenplay), Christopher Nolan (story), David S. Goyer (story), Bob Kane (characters)",
+    "Actors": "Christian Bale, Heath Ledger, Aaron Eckhart, Michael Caine",
+    "Plot": "When the menace known as the Joker wreaks havoc and chaos on the people of Gotham, the caped crusader must come to terms with one of the greatest psychological tests of his ability to fight injustice.",
+    "Language": "English, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Won 2 Oscars. Another 146 wins & 142 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTMxNTMwODM0NF5BMl5BanBnXkFtZTcwODAyMTk2Mw@@._V1_SX300.jpg",
+    "Metascore": "82",
+    "imdbRating": "9.0",
+    "imdbVotes": "1,652,832",
+    "imdbID": "tt0468569",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Batman Begins",
+    "Year": "2005",
+    "Rated": "PG-13",
+    "Released": "15 Jun 2005",
+    "Runtime": "140 min",
+    "Genre": "Action, Adventure",
+    "Director": "Christopher Nolan",
+    "Writer": "Bob Kane (characters), David S. Goyer (story), Christopher Nolan (screenplay), David S. Goyer (screenplay)",
+    "Actors": "Christian Bale, Michael Caine, Liam Neeson, Katie Holmes",
+    "Plot": "After training with his mentor, Batman begins his fight to free crime-ridden Gotham City from the corruption that Scarecrow and the League of Shadows have cast upon it.",
+    "Language": "English, Urdu, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Nominated for 1 Oscar. Another 15 wins & 66 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BNTM3OTc0MzM2OV5BMl5BanBnXkFtZTYwNzUwMTI3._V1_SX300.jpg",
+    "Metascore": "70",
+    "imdbRating": "8.3",
+    "imdbVotes": "972,584",
+    "imdbID": "tt0372784",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Avatar",
+    "Year": "2009",
+    "Rated": "PG-13",
+    "Released": "18 Dec 2009",
+    "Runtime": "162 min",
+    "Genre": "Action, Adventure, Fantasy",
+    "Director": "James Cameron",
+    "Writer": "James Cameron",
+    "Actors": "Sam Worthington, Zoe Saldana, Sigourney Weaver, Stephen Lang",
+    "Plot": "A paraplegic marine dispatched to the moon Pandora on a unique mission becomes torn between following his orders and protecting the world he feels is his home.",
+    "Language": "English, Spanish",
+    "Country": "USA, UK",
+    "Awards": "Won 3 Oscars. Another 80 wins & 121 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTYwOTEwNjAzMl5BMl5BanBnXkFtZTcwODc5MTUwMw@@._V1_SX300.jpg",
+    "Metascore": "83",
+    "imdbRating": "7.9",
+    "imdbVotes": "876,575",
+    "imdbID": "tt0499549",
+    "Type": "movie",
+    "Response": "True"
+  }
+];
+
+// Only change code below this line
+
+var ratings = [];
+for(var i=0; i < watchList.length; i++){
+  ratings.push({title: watchList[i]["Title"],  rating: watchList[i]["imdbRating"]});
+}
+
+// Only change code above this line
+
+console.log(JSON.stringify(ratings));
+```
+
 # --solutions--
 
+```js
+// The global variable
+var watchList = [
+  {
+    "Title": "Inception",
+    "Year": "2010",
+    "Rated": "PG-13",
+    "Released": "16 Jul 2010",
+    "Runtime": "148 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Christopher Nolan",
+    "Actors": "Leonardo DiCaprio, Joseph Gordon-Levitt, Ellen Page, Tom Hardy",
+    "Plot": "A thief, who steals corporate secrets through use of dream-sharing technology, is given the inverse task of planting an idea into the mind of a CEO.",
+    "Language": "English, Japanese, French",
+    "Country": "USA, UK",
+    "Awards": "Won 4 Oscars. Another 143 wins & 198 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjAxMzY3NjcxNF5BMl5BanBnXkFtZTcwNTI5OTM0Mw@@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.8",
+    "imdbVotes": "1,446,708",
+    "imdbID": "tt1375666",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Interstellar",
+    "Year": "2014",
+    "Rated": "PG-13",
+    "Released": "07 Nov 2014",
+    "Runtime": "169 min",
+    "Genre": "Adventure, Drama, Sci-Fi",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan, Christopher Nolan",
+    "Actors": "Ellen Burstyn, Matthew McConaughey, Mackenzie Foy, John Lithgow",
+    "Plot": "A team of explorers travel through a wormhole in space in an attempt to ensure humanity's survival.",
+    "Language": "English",
+    "Country": "USA, UK",
+    "Awards": "Won 1 Oscar. Another 39 wins & 132 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjIxNTU4MzY4MF5BMl5BanBnXkFtZTgwMzM4ODI3MjE@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.6",
+    "imdbVotes": "910,366",
+    "imdbID": "tt0816692",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "The Dark Knight",
+    "Year": "2008",
+    "Rated": "PG-13",
+    "Released": "18 Jul 2008",
+    "Runtime": "152 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan (screenplay), Christopher Nolan (screenplay), Christopher Nolan (story), David S. Goyer (story), Bob Kane (characters)",
+    "Actors": "Christian Bale, Heath Ledger, Aaron Eckhart, Michael Caine",
+    "Plot": "When the menace known as the Joker wreaks havoc and chaos on the people of Gotham, the caped crusader must come to terms with one of the greatest psychological tests of his ability to fight injustice.",
+    "Language": "English, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Won 2 Oscars. Another 146 wins & 142 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTMxNTMwODM0NF5BMl5BanBnXkFtZTcwODAyMTk2Mw@@._V1_SX300.jpg",
+    "Metascore": "82",
+    "imdbRating": "9.0",
+    "imdbVotes": "1,652,832",
+    "imdbID": "tt0468569",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Batman Begins",
+    "Year": "2005",
+    "Rated": "PG-13",
+    "Released": "15 Jun 2005",
+    "Runtime": "140 min",
+    "Genre": "Action, Adventure",
+    "Director": "Christopher Nolan",
+    "Writer": "Bob Kane (characters), David S. Goyer (story), Christopher Nolan (screenplay), David S. Goyer (screenplay)",
+    "Actors": "Christian Bale, Michael Caine, Liam Neeson, Katie Holmes",
+    "Plot": "After training with his mentor, Batman begins his fight to free crime-ridden Gotham City from the corruption that Scarecrow and the League of Shadows have cast upon it.",
+    "Language": "English, Urdu, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Nominated for 1 Oscar. Another 15 wins & 66 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BNTM3OTc0MzM2OV5BMl5BanBnXkFtZTYwNzUwMTI3._V1_SX300.jpg",
+    "Metascore": "70",
+    "imdbRating": "8.3",
+    "imdbVotes": "972,584",
+    "imdbID": "tt0372784",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Avatar",
+    "Year": "2009",
+    "Rated": "PG-13",
+    "Released": "18 Dec 2009",
+    "Runtime": "162 min",
+    "Genre": "Action, Adventure, Fantasy",
+    "Director": "James Cameron",
+    "Writer": "James Cameron",
+    "Actors": "Sam Worthington, Zoe Saldana, Sigourney Weaver, Stephen Lang",
+    "Plot": "A paraplegic marine dispatched to the moon Pandora on a unique mission becomes torn between following his orders and protecting the world he feels is his home.",
+    "Language": "English, Spanish",
+    "Country": "USA, UK",
+    "Awards": "Won 3 Oscars. Another 80 wins & 121 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTYwOTEwNjAzMl5BMl5BanBnXkFtZTcwODc5MTUwMw@@._V1_SX300.jpg",
+    "Metascore": "83",
+    "imdbRating": "7.9",
+    "imdbVotes": "876,575",
+    "imdbID": "tt0499549",
+    "Type": "movie",
+    "Response": "True"
+  }
+];
+
+var ratings = watchList.map(function(movie) {
+  return {
+    title: movie["Title"],
+    rating: movie["imdbRating"]
+  }
+});
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/use-the-reduce-method-to-analyze-data.md

@@ -3,6 +3,7 @@ id: 587d7da9367417b2b2512b68
 title: 使用 reduce 方法分析数据
 challengeType: 1
 forumTopicId: 301313
+dashedName: use-the-reduce-method-to-analyze-data
 ---
 
 # --description--
@@ -82,5 +83,259 @@ assert(!code.match(/for\s*?\(.*\)/g));
 assert(getRating(watchList.filter((_, i) => i < 1 || i > 2)) === 8.55);
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+// The global variable
+var watchList = [
+  {
+    "Title": "Inception",
+    "Year": "2010",
+    "Rated": "PG-13",
+    "Released": "16 Jul 2010",
+    "Runtime": "148 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Christopher Nolan",
+    "Actors": "Leonardo DiCaprio, Joseph Gordon-Levitt, Ellen Page, Tom Hardy",
+    "Plot": "A thief, who steals corporate secrets through use of dream-sharing technology, is given the inverse task of planting an idea into the mind of a CEO.",
+    "Language": "English, Japanese, French",
+    "Country": "USA, UK",
+    "Awards": "Won 4 Oscars. Another 143 wins & 198 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjAxMzY3NjcxNF5BMl5BanBnXkFtZTcwNTI5OTM0Mw@@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.8",
+    "imdbVotes": "1,446,708",
+    "imdbID": "tt1375666",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Interstellar",
+    "Year": "2014",
+    "Rated": "PG-13",
+    "Released": "07 Nov 2014",
+    "Runtime": "169 min",
+    "Genre": "Adventure, Drama, Sci-Fi",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan, Christopher Nolan",
+    "Actors": "Ellen Burstyn, Matthew McConaughey, Mackenzie Foy, John Lithgow",
+    "Plot": "A team of explorers travel through a wormhole in space in an attempt to ensure humanity's survival.",
+    "Language": "English",
+    "Country": "USA, UK",
+    "Awards": "Won 1 Oscar. Another 39 wins & 132 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjIxNTU4MzY4MF5BMl5BanBnXkFtZTgwMzM4ODI3MjE@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.6",
+    "imdbVotes": "910,366",
+    "imdbID": "tt0816692",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "The Dark Knight",
+    "Year": "2008",
+    "Rated": "PG-13",
+    "Released": "18 Jul 2008",
+    "Runtime": "152 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan (screenplay), Christopher Nolan (screenplay), Christopher Nolan (story), David S. Goyer (story), Bob Kane (characters)",
+    "Actors": "Christian Bale, Heath Ledger, Aaron Eckhart, Michael Caine",
+    "Plot": "When the menace known as the Joker wreaks havoc and chaos on the people of Gotham, the caped crusader must come to terms with one of the greatest psychological tests of his ability to fight injustice.",
+    "Language": "English, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Won 2 Oscars. Another 146 wins & 142 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTMxNTMwODM0NF5BMl5BanBnXkFtZTcwODAyMTk2Mw@@._V1_SX300.jpg",
+    "Metascore": "82",
+    "imdbRating": "9.0",
+    "imdbVotes": "1,652,832",
+    "imdbID": "tt0468569",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Batman Begins",
+    "Year": "2005",
+    "Rated": "PG-13",
+    "Released": "15 Jun 2005",
+    "Runtime": "140 min",
+    "Genre": "Action, Adventure",
+    "Director": "Christopher Nolan",
+    "Writer": "Bob Kane (characters), David S. Goyer (story), Christopher Nolan (screenplay), David S. Goyer (screenplay)",
+    "Actors": "Christian Bale, Michael Caine, Liam Neeson, Katie Holmes",
+    "Plot": "After training with his mentor, Batman begins his fight to free crime-ridden Gotham City from the corruption that Scarecrow and the League of Shadows have cast upon it.",
+    "Language": "English, Urdu, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Nominated for 1 Oscar. Another 15 wins & 66 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BNTM3OTc0MzM2OV5BMl5BanBnXkFtZTYwNzUwMTI3._V1_SX300.jpg",
+    "Metascore": "70",
+    "imdbRating": "8.3",
+    "imdbVotes": "972,584",
+    "imdbID": "tt0372784",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Avatar",
+    "Year": "2009",
+    "Rated": "PG-13",
+    "Released": "18 Dec 2009",
+    "Runtime": "162 min",
+    "Genre": "Action, Adventure, Fantasy",
+    "Director": "James Cameron",
+    "Writer": "James Cameron",
+    "Actors": "Sam Worthington, Zoe Saldana, Sigourney Weaver, Stephen Lang",
+    "Plot": "A paraplegic marine dispatched to the moon Pandora on a unique mission becomes torn between following his orders and protecting the world he feels is his home.",
+    "Language": "English, Spanish",
+    "Country": "USA, UK",
+    "Awards": "Won 3 Oscars. Another 80 wins & 121 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTYwOTEwNjAzMl5BMl5BanBnXkFtZTcwODc5MTUwMw@@._V1_SX300.jpg",
+    "Metascore": "83",
+    "imdbRating": "7.9",
+    "imdbVotes": "876,575",
+    "imdbID": "tt0499549",
+    "Type": "movie",
+    "Response": "True"
+  }
+];
+
+function getRating(watchList){
+  // Only change code below this line
+  var averageRating;
+
+
+  // Only change code above this line
+  return averageRating;
+}
+console.log(getRating(watchList));
+```
+
 # --solutions--
 
+```js
+// The global variable
+var watchList = [
+  {
+    "Title": "Inception",
+    "Year": "2010",
+    "Rated": "PG-13",
+    "Released": "16 Jul 2010",
+    "Runtime": "148 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Christopher Nolan",
+    "Actors": "Leonardo DiCaprio, Joseph Gordon-Levitt, Ellen Page, Tom Hardy",
+    "Plot": "A thief, who steals corporate secrets through use of dream-sharing technology, is given the inverse task of planting an idea into the mind of a CEO.",
+    "Language": "English, Japanese, French",
+    "Country": "USA, UK",
+    "Awards": "Won 4 Oscars. Another 143 wins & 198 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjAxMzY3NjcxNF5BMl5BanBnXkFtZTcwNTI5OTM0Mw@@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.8",
+    "imdbVotes": "1,446,708",
+    "imdbID": "tt1375666",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Interstellar",
+    "Year": "2014",
+    "Rated": "PG-13",
+    "Released": "07 Nov 2014",
+    "Runtime": "169 min",
+    "Genre": "Adventure, Drama, Sci-Fi",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan, Christopher Nolan",
+    "Actors": "Ellen Burstyn, Matthew McConaughey, Mackenzie Foy, John Lithgow",
+    "Plot": "A team of explorers travel through a wormhole in space in an attempt to ensure humanity's survival.",
+    "Language": "English",
+    "Country": "USA, UK",
+    "Awards": "Won 1 Oscar. Another 39 wins & 132 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMjIxNTU4MzY4MF5BMl5BanBnXkFtZTgwMzM4ODI3MjE@._V1_SX300.jpg",
+    "Metascore": "74",
+    "imdbRating": "8.6",
+    "imdbVotes": "910,366",
+    "imdbID": "tt0816692",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "The Dark Knight",
+    "Year": "2008",
+    "Rated": "PG-13",
+    "Released": "18 Jul 2008",
+    "Runtime": "152 min",
+    "Genre": "Action, Adventure, Crime",
+    "Director": "Christopher Nolan",
+    "Writer": "Jonathan Nolan (screenplay), Christopher Nolan (screenplay), Christopher Nolan (story), David S. Goyer (story), Bob Kane (characters)",
+    "Actors": "Christian Bale, Heath Ledger, Aaron Eckhart, Michael Caine",
+    "Plot": "When the menace known as the Joker wreaks havoc and chaos on the people of Gotham, the caped crusader must come to terms with one of the greatest psychological tests of his ability to fight injustice.",
+    "Language": "English, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Won 2 Oscars. Another 146 wins & 142 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTMxNTMwODM0NF5BMl5BanBnXkFtZTcwODAyMTk2Mw@@._V1_SX300.jpg",
+    "Metascore": "82",
+    "imdbRating": "9.0",
+    "imdbVotes": "1,652,832",
+    "imdbID": "tt0468569",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Batman Begins",
+    "Year": "2005",
+    "Rated": "PG-13",
+    "Released": "15 Jun 2005",
+    "Runtime": "140 min",
+    "Genre": "Action, Adventure",
+    "Director": "Christopher Nolan",
+    "Writer": "Bob Kane (characters), David S. Goyer (story), Christopher Nolan (screenplay), David S. Goyer (screenplay)",
+    "Actors": "Christian Bale, Michael Caine, Liam Neeson, Katie Holmes",
+    "Plot": "After training with his mentor, Batman begins his fight to free crime-ridden Gotham City from the corruption that Scarecrow and the League of Shadows have cast upon it.",
+    "Language": "English, Urdu, Mandarin",
+    "Country": "USA, UK",
+    "Awards": "Nominated for 1 Oscar. Another 15 wins & 66 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BNTM3OTc0MzM2OV5BMl5BanBnXkFtZTYwNzUwMTI3._V1_SX300.jpg",
+    "Metascore": "70",
+    "imdbRating": "8.3",
+    "imdbVotes": "972,584",
+    "imdbID": "tt0372784",
+    "Type": "movie",
+    "Response": "True"
+  },
+  {
+    "Title": "Avatar",
+    "Year": "2009",
+    "Rated": "PG-13",
+    "Released": "18 Dec 2009",
+    "Runtime": "162 min",
+    "Genre": "Action, Adventure, Fantasy",
+    "Director": "James Cameron",
+    "Writer": "James Cameron",
+    "Actors": "Sam Worthington, Zoe Saldana, Sigourney Weaver, Stephen Lang",
+    "Plot": "A paraplegic marine dispatched to the moon Pandora on a unique mission becomes torn between following his orders and protecting the world he feels is his home.",
+    "Language": "English, Spanish",
+    "Country": "USA, UK",
+    "Awards": "Won 3 Oscars. Another 80 wins & 121 nominations.",
+    "Poster": "http://ia.media-imdb.com/images/M/MV5BMTYwOTEwNjAzMl5BMl5BanBnXkFtZTcwODc5MTUwMw@@._V1_SX300.jpg",
+    "Metascore": "83",
+    "imdbRating": "7.9",
+    "imdbVotes": "876,575",
+    "imdbID": "tt0499549",
+    "Type": "movie",
+    "Response": "True"
+  }
+];
+
+function getRating(watchList){
+  var averageRating;
+  const rating = watchList
+    .filter(obj => obj.Director === "Christopher Nolan")
+    .map(obj => Number(obj.imdbRating));
+  averageRating = rating.reduce((accum, curr) => accum + curr)/rating.length;
+  return averageRating;
+}
+```

curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/use-the-some-method-to-check-that-any-elements-in-an-array-meet-a-criteria.md

@@ -3,6 +3,7 @@ id: 587d7dab367417b2b2512b6f
 title: 使用 some 方法检查数组中是否有元素是否符合条件
 challengeType: 1
 forumTopicId: 301314
+dashedName: use-the-some-method-to-check-that-any-elements-in-an-array-meet-a-criteria
 ---
 
 # --description--
@@ -49,5 +50,27 @@ assert(checkPositive([1, 2, 3, 4, 5]));
 assert(!checkPositive([-1, -2, -3, -4, -5]));
 ```
 
+# --seed--
+
+## --seed-contents--
+
+```js
+function checkPositive(arr) {
+  // Only change code below this line
+
+
+  // Only change code above this line
+}
+checkPositive([1, 2, 3, -4, 5]);
+```
+
 # --solutions--
 
+```js
+function checkPositive(arr) {
+  // Only change code below this line
+  return arr.some(elem => elem > 0);
+  // Only change code above this line
+}
+checkPositive([1, 2, 3, -4, 5]);
+```