fix(curriculum): Consolidated comments for JavaScript Algorithms and Data Structures challenges - part 4 of 4 (#38267)

* fix: consolidate comments


Co-authored-by: Parth Parth <34807532+thecodingaviator@users.noreply.github.com>

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

@@ -67,16 +67,6 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourDog = {
-  "name": "Camper",
-  "legs": 4,
-  "tails": 1,
-  "friends": ["everything!"]
-};
-
-// Only change code below this line
-
 var myDog = {
 
 

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

@@ -57,9 +57,9 @@ var myObj = {
 };
 
 function checkObj(checkProp) {
-  // Your Code Here
-
+  // Only change code below this line
   return "Change Me!";
+  // Only change code above this line
 }
 
 checkObj("gift");

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/debugging/use-the-javascript-console-to-check-the-value-of-a-variable.english.md

@@ -40,7 +40,7 @@ tests:
 let a = 5;
 let b = 1;
 a++;
-// Add your code below this line
+// Only change code below this line
 
 
 let sumAB = a + b;

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/debugging/use-typeof-to-check-the-type-of-a-variable.english.md

@@ -50,7 +50,7 @@ tests:
 let seven = 7;
 let three = "3";
 console.log(seven + three);
-// Add your code below this line
+// Only change code below this line
 
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/mutate-an-array-declared-with-const.english.md

@@ -56,7 +56,7 @@ function editInPlace() {
   'use strict';
   // Only change code below this line
 
-  // s = [2, 5, 7]; <- this is invalid
+  // Using s = [2, 5, 7] would be invalid
 
   // Only change code above this line
 }

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/set-default-parameters-for-your-functions.english.md

@@ -47,10 +47,9 @@ tests:
 <div id='js-seed'>
 
 ```js
+// Only change code below this line
 const increment = (number, value) => number + value;
-
-console.log(increment(5, 2)); // returns 7
-console.log(increment(5)); // returns 6
+// Only change code above this line
 ```
 
 </div>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-assign-variables-from-arrays.english.md

@@ -56,9 +56,6 @@ tests:
 let a = 8, b = 6;
 // Only change code below this line
 
-// Only change code above this line
-console.log(a); // should be 6
-console.log(b); // should be 8
 ```
 
 </div>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-assign-variables-from-nested-objects.english.md

@@ -50,6 +50,8 @@ tests:
     testString: assert(code.match(/(var|const|let)\s*{\s*today\s*:\s*{\s*(low\s*:\s*lowToday[^}]*|[^,]*,\s*low\s*:\s*lowToday\s*)}\s*}\s*=\s*LOCAL_FORECAST(;|\s+|\/\/)/g));
   - text: You should use destructuring to create the <code>highToday</code> variable.
     testString: assert(code.match(/(var|const|let)\s*{\s*today\s*:\s*{\s*(high\s*:\s*highToday[^}]*|[^,]*,\s*high\s*:\s*highToday\s*)}\s*}\s*=\s*LOCAL_FORECAST(;|\s+|\/\/)/g));
+  - text: <code>lowToday</code> should be equal to <code>64</code> and <code>highToday</code> should be equal to <code>77</code>.
+    testString: assert(lowToday === 64 && highToday === 77);
 ```
 
 </section>
@@ -71,9 +73,6 @@ const lowToday = LOCAL_FORECAST.today.low;
 const highToday = LOCAL_FORECAST.today.high;
 
 // Only change code above this line
-
-console.log(lowToday); // should be 64
-console.log(highToday); // should be 77
 ```
 
 </div>
@@ -88,11 +87,8 @@ const LOCAL_FORECAST = {
   today: { low: 64, high: 77 },
   tomorrow: { low: 68, high: 80 }
 };
-
+ 
 const { today: { low: lowToday, high: highToday }} = LOCAL_FORECAST;
-
-console.log(highToday); // should be 77
-console.log(highTomorrow); // should be 80
 ```
 
 </section>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-assign-variables-from-objects.english.md

@@ -41,6 +41,8 @@ tests:
     testString: assert(code.match(/(var|const|let)\s*{\s*(today\s*:\s*highToday[^}]*|[^,]*,\s*today\s*:\s*highToday\s*)}\s*=\s*HIGH_TEMPERATURES(;|\s+|\/\/)/g));
   - text: You should use destructuring to create the <code>highTomorrow</code> variable.
     testString: assert(code.match(/(var|const|let)\s*{\s*(tomorrow\s*:\s*highTomorrow[^}]*|[^,]*,\s*tomorrow\s*:\s*highTomorrow\s*)}\s*=\s*HIGH_TEMPERATURES(;|\s+|\/\/)/g));
+  - text: <code>highToday</code> should be equal to <code>77</code> and <code>highTomorrow</code> should be equal to <code>80</code>.
+    testString: assert(highToday === 77 && highTomorrow === 80);
 ```
 
 </section>
@@ -62,10 +64,6 @@ const highToday = HIGH_TEMPERATURES.today;
 const highTomorrow = HIGH_TEMPERATURES.tomorrow; 
 
 // Only change code above this line
-
-console.log(yesterday) // should be not defined
-console.log(highToday); // should be 77
-console.log(highTomorrow); // should be 80
 ```
 
 </div>
@@ -82,9 +80,6 @@ const HIGH_TEMPERATURES = {
 };
 
 const { today: highToday, tomorrow: highTomorrow } = HIGH_TEMPERATURES;
-
-console.log(highToday); // should be 77
-console.log(highTomorrow); // should be 80
 ```
 
 </section>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-extract-values-from-objects.english.md

@@ -46,6 +46,8 @@ tests:
     testString: assert(code.match(/(var|let|const)\s*{\s*(today[^}]*|[^,]*,\s*today)\s*}\s*=\s*HIGH_TEMPERATURES(;|\s+|\/\/)/g));
   - text: You should use destructuring to create the <code>tomorrow</code> variable.
     testString: assert(code.match(/(var|let|const)\s*{\s*(tomorrow[^}]*|[^,]*,\s*tomorrow)\s*}\s*=\s*HIGH_TEMPERATURES(;|\s+|\/\/)/g));
+  - text: <code>today</code> should be equal to <code>77</code> and <code>tomorrow</code> should be equal to <code>80</code>.
+    testString: assert(today === 77 && tomorrow === 80);
 ```
 
 </section>
@@ -67,10 +69,6 @@ const today = HIGH_TEMPERATURES.today;
 const tomorrow = HIGH_TEMPERATURES.tomorrow;
 
 // Only change code above this line
-
-console.log(yesterday) // should be not defined
-console.log(today); // should be 77
-console.log(tomorrow); // should be 80
 ```
 
 </div>
@@ -87,10 +85,6 @@ const HIGH_TEMPERATURES = {
 };
 
 const { today, tomorrow } = HIGH_TEMPERATURES;
-
-console.log(yesterday) // should be not defined
-console.log(today); // should be 77
-console.log(tomorrow); // should be 80
 ```
 
 </section>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-pass-an-object-as-a-functions-parameters.english.md

@@ -67,13 +67,10 @@ const stats = {
   average: 35.85
 };
 
-// Use function argument destructuring
 // Only change code below this line
 const half = (stats) => (stats.max + stats.min) / 2.0; 
 // Only change code above this line
 
-console.log(stats); // should be object
-console.log(half(stats)); // should be 28.015
 ```
 
 </div>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-with-the-rest-parameter-to-reassign-array-elements.english.md

@@ -32,6 +32,8 @@ Use destructuring assignment with the rest parameter to perform an effective <co
 tests:
   - text: <code>arr</code> should be <code>[3,4,5,6,7,8,9,10]</code>
     testString: assert(arr.every((v, i) => v === i + 3) && arr.length === 8);
+  - text: <code>source</code> should be <code>[1,2,3,4,5,6,7,8,9,10]</code>
+    testString: assert(source.every((v, i) => v === i + 1) && source.length === 10);
   - text: <code>Array.slice()</code> should not be used.
     testString: getUserInput => assert(!getUserInput('index').match(/slice/g));
   - text: Destructuring on <code>list</code> should be used.
@@ -50,14 +52,13 @@ tests:
 const source = [1,2,3,4,5,6,7,8,9,10];
 function removeFirstTwo(list) {
   "use strict";
-  // change code below this line
-  const arr = list; // change this
-  // change code above this line
+  // Only change code below this line
+  const arr = list; // Change this line
+  // Only change code above this line
   return arr;
 }
 const arr = removeFirstTwo(source);
-console.log(arr); // should be [3,4,5,6,7,8,9,10]
-console.log(source); // should be [1,2,3,4,5,6,7,8,9,10];
+
 ```
 
 </div>
@@ -73,9 +74,7 @@ console.log(source); // should be [1,2,3,4,5,6,7,8,9,10];
 const source = [1,2,3,4,5,6,7,8,9,10];
 function removeFirstTwo(list) {
   "use strict";
-  // change code below this line
   const [, , ...arr] = list;
-  // change code above this line
   return arr;
 }
 const arr = removeFirstTwo(source);

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-getters-and-setters-to-control-access-to-an-object.english.md

@@ -79,10 +79,10 @@ tests:
 
 // Only change code above this line
 
-const thermos = new Thermostat(76); // setting in Fahrenheit scale
-let temp = thermos.temperature; // 24.44 in C
+const thermos = new Thermostat(76); // Setting in Fahrenheit scale
+let temp = thermos.temperature; // 24.44 in Celsius
 thermos.temperature = 26;
-temp = thermos.temperature; // 26 in C
+temp = thermos.temperature; // 26 in Celsius
 ```
 
 </div>
@@ -107,10 +107,10 @@ class Thermostat {
   }
 }
 
-const thermos = new Thermostat(76); // setting in Fahrenheit scale
-let temp = thermos.temperature; // 24.44 in C
+const thermos = new Thermostat(76); // Setting in Fahrenheit scale
+let temp = thermos.temperature; // 24.44 in Celsius
 thermos.temperature = 26;
-temp = thermos.temperature; // 26 in C
+temp = thermos.temperature; // 26 in Celsius
 ```
 
 </section>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/write-concise-object-literal-declarations-using-object-property-shorthand.english.md

@@ -62,7 +62,6 @@ const createPerson = (name, age, gender) => {
   };
   // Only change code above this line
 };
-console.log(createPerson("Zodiac Hasbro", 56, "male")); // returns a proper object
 ```
 
 </div>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/add-elements-to-the-end-of-an-array-using-concat-instead-of-push.english.md

@@ -52,10 +52,10 @@ tests:
 
 ```js
 function nonMutatingPush(original, newItem) {
-  // Add your code below this line
+  // Only change code below this line
   return original.push(newItem);
 
-  // Add your code above this line
+  // Only change code above this line
 }
 var first = [1, 2, 3];
 var second = [4, 5];

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

@@ -49,15 +49,15 @@ tests:
 <div id='js-seed'>
 
 ```js
-// the global variable
+// The global variable
 var globalTitle = "Winter Is Coming";
 
-// Add your code below this line
+// Only change code below this line
 function urlSlug(title) {
 
 
 }
-// Add your code above this line
+// Only change code above this line
 
 var winterComing = urlSlug(globalTitle); // Should be "winter-is-coming"
 ```
@@ -72,16 +72,13 @@ var winterComing = urlSlug(globalTitle); // Should be "winter-is-coming"
 <section id='solution'>
 
 ```js
-// the global variable
+// The global variable
 var globalTitle = "Winter Is Coming";
 
-// Add your code below this line
+// Only change code below this line
 function urlSlug(title) {
   return title.trim().split(/\s+/).join("-").toLowerCase();
 }
-// Add your code above this line
-
-var winterComing = urlSlug(globalTitle); // Should be "winter-is-coming"
 ```
 
 </section>

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

@@ -40,14 +40,14 @@ tests:
 <div id='js-seed'>
 
 ```js
-// the global variable
+// The global variable
 var fixedValue = 4;
 
 function incrementer () {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 
 var newValue = incrementer(); // Should equal 5

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

@@ -52,10 +52,10 @@ tests:
 
 ```js
 function sentensify(str) {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 sentensify("May-the-force-be-with-you");
 ```
@@ -71,9 +71,9 @@ sentensify("May-the-force-be-with-you");
 
 ```js
 function sentensify(str) {
-  // Add your code below this line
+  // Only change code below this line
   return str.split(/\W/).join(' ');
-  // Add your code above this line
+  // Only change code above this line
 }
 ```
 

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

@@ -46,10 +46,10 @@ tests:
 
 ```js
 function nonMutatingConcat(original, attach) {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 var first = [1, 2, 3];
 var second = [4, 5];
@@ -67,9 +67,9 @@ nonMutatingConcat(first, second);
 
 ```js
 function nonMutatingConcat(original, attach) {
-  // Add your code below this line
+  // Only change code below this line
   return original.concat(attach);
-  // Add your code above this line
+  // Only change code above this line
 }
 var first = [1, 2, 3];
 var second = [4, 5];

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

@@ -38,14 +38,14 @@ tests:
 <div id='js-seed'>
 
 ```js
-// the global Array
+// The global variable
 var s = [23, 65, 98, 5];
 
 Array.prototype.myMap = function(callback){
   var newArray = [];
-  // Add your code below this line
+  // Only change code below this line
 
-  // Add your code above this line
+  // Only change code above this line
   return newArray;
 
 };
@@ -70,11 +70,11 @@ var s = [23, 65, 98, 5];
 
 Array.prototype.myMap = function(callback){
   var newArray = [];
-  // Add your code below this line
+  // Only change code below this line
   for (var elem of this) {
     newArray.push(callback(elem));
   }
-  // Add your code above this line
+  // Only change code above this line
   return newArray;
 
 };

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

@@ -36,14 +36,13 @@ tests:
 <div id='js-seed'>
 
 ```js
-// the global Array
+// The global variable
 var s = [23, 65, 98, 5];
 
 Array.prototype.myFilter = function(callback){
+  // Only change code below this line
   var newArray = [];
-  // Add your code below this line
-
-  // Add your code above this line
+  // Only change code above this line
   return newArray;
 
 };
@@ -68,12 +67,12 @@ var s = [23, 65, 98, 5];
 
 Array.prototype.myFilter = function(callback){
   var newArray = [];
-  // Add your code below this line
+  // Only change code below this line
   for (let i = 0;i<this.length;i++) {
     if (callback(this[i]))
       newArray.push(this[i]);
   }
-  // Add your code above this line
+  // Only change code above this line
   return newArray;
 };
 

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

@@ -81,10 +81,10 @@ tests:
 
 ```js
 function add(x) {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 add(10)(20)(30);
 ```

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

@@ -62,8 +62,6 @@ const getTea = (numOfCups) => {
 // Only change code below this line
 const tea4TeamFCC = null;
 // Only change code above this line
-
-console.log(tea4TeamFCC);
 ```
 
 </div>

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

@@ -43,14 +43,14 @@ tests:
 <div id='js-seed'>
 
 ```js
-// the global variable
+// The global variable
 var fixedValue = 4;
 
-// Add your code below this line
+// Only change code below this line
 function incrementer () {
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 
 var newValue = incrementer(fixedValue); // Should equal 5
@@ -67,7 +67,7 @@ console.log(fixedValue); // Should print 4
 <section id='solution'>
 
 ```js
-// the global variable
+// The global variable
 var fixedValue = 4;
 
 const incrementer = val => val + 1;

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

@@ -45,7 +45,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// the global variable
+// 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

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

@@ -49,10 +49,10 @@ tests:
 
 ```js
 function nonMutatingSplice(cities) {
-  // Add your code below this line
+  // Only change code below this line
   return cities.splice(3);
 
-  // Add your code above this line
+  // Only change code above this line
 }
 var inputCities = ["Chicago", "Delhi", "Islamabad", "London", "Berlin"];
 nonMutatingSplice(inputCities);
@@ -69,9 +69,9 @@ nonMutatingSplice(inputCities);
 
 ```js
 function nonMutatingSplice(cities) {
-  // Add your code below this line
+  // Only change code below this line
   return cities.slice(0,3);
-  // Add your code above this line
+  // Only change code above this line
 }
 var inputCities = ["Chicago", "Delhi", "Islamabad", "London", "Berlin"];
 nonMutatingSplice(inputCities);

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

@@ -43,10 +43,10 @@ tests:
 ```js
 var globalArray = [5, 6, 3, 2, 9];
 function nonMutatingSort(arr) {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 nonMutatingSort(globalArray);
 ```
@@ -63,9 +63,9 @@ nonMutatingSort(globalArray);
 ```js
 var globalArray = [5, 6, 3, 2, 9];
 function nonMutatingSort(arr) {
-  // Add your code below this line
+  // Only change code below this line
   return [].concat(arr).sort((a,b) => a-b);
-  // Add your code above this line
+  // Only change code above this line
 }
 nonMutatingSort(globalArray);
 ```

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

@@ -50,10 +50,10 @@ tests:
 
 ```js
 function sliceArray(anim, beginSlice, endSlice) {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 var inputAnim = ["Cat", "Dog", "Tiger", "Zebra", "Ant"];
 sliceArray(inputAnim, 1, 3);
@@ -70,9 +70,9 @@ sliceArray(inputAnim, 1, 3);
 
 ```js
 function sliceArray(anim, beginSlice, endSlice) {
-  // Add your code below this line
+  // Only change code below this line
   return anim.slice(beginSlice, endSlice)
-  // Add your code above this line
+  // Only change code above this line
 }
 var inputAnim = ["Cat", "Dog", "Tiger", "Zebra", "Ant"];
 sliceArray(inputAnim, 1, 3);

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

@@ -65,10 +65,10 @@ tests:
 
 ```js
 function alphabeticalOrder(arr) {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);
 ```
@@ -84,9 +84,9 @@ alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);
 
 ```js
 function alphabeticalOrder(arr) {
-  // Add your code below this line
+  // Only change code below this line
   return arr.sort();
-  // Add your code above this line
+  // Only change code above this line
 }
 alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);
 ```

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

@@ -53,10 +53,10 @@ tests:
 
 ```js
 function splitify(str) {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 splitify("Hello World,I-am code");
 ```
@@ -72,9 +72,9 @@ splitify("Hello World,I-am code");
 
 ```js
 function splitify(str) {
-  // Add your code below this line
+  // Only change code below this line
   return str.split(/\W/);
-  // Add your code above this line
+  // Only change code above this line
 }
 ```
 

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

@@ -50,10 +50,10 @@ tests:
 
 ```js
 function checkPositive(arr) {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 checkPositive([1, 2, 3, -4, 5]);
 ```
@@ -69,9 +69,9 @@ checkPositive([1, 2, 3, -4, 5]);
 
 ```js
 function checkPositive(arr) {
-  // Add your code below this line
+  // Only change code below this line
   return arr.every(num => num > 0);
-  // Add your code above this line
+  // Only change code above this line
 }
 checkPositive([1, 2, 3, -4, 5]);
 ```

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

@@ -54,7 +54,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// the global variable
+// The global variable
 var watchList = [
   {
     "Title": "Inception",
@@ -168,11 +168,11 @@ var watchList = [
   }
 ];
 
-// Add your code below this line
+// Only change code below this line
 
 var filteredList;
 
-// Add your code above this line
+// Only change code above this line
 
 console.log(filteredList);
 ```
@@ -187,7 +187,7 @@ console.log(filteredList);
 <section id='solution'>
 
 ```js
-// the global variable
+// The global variable
 var watchList = [
   {
     "Title": "Inception",
@@ -301,9 +301,9 @@ var watchList = [
   }
 ];
 
-// Add your code below this line
+// Only change code below this line
 let filteredList = watchList.filter(e => e.imdbRating >= 8).map( ({Title: title, imdbRating: rating}) => ({title, rating}) );
-// Add your code above this line
+// Only change code above this line
 ```
 
 </section>

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

@@ -57,7 +57,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// the global variable
+// The global variable
 var watchList = [
   {
     "Title": "Inception",
@@ -171,14 +171,14 @@ var watchList = [
   }
 ];
 
-// Add your code below this line
+// 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"]});
 }
 
-// Add your code above this line
+// Only change code above this line
 
 console.log(JSON.stringify(ratings));
 ```
@@ -200,7 +200,7 @@ const removeJSComments = str => str.replace(/\/\*[\s\S]*?\*\/|\/\/.*$/gm, '');
 <section id='solution'>
 
 ```js
-// the global variable
+// The global variable
 var watchList = [
   {
     "Title": "Inception",

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

@@ -79,7 +79,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// the global variable
+// The global variable
 var watchList = [
   {
     "Title": "Inception",
@@ -194,11 +194,11 @@ var watchList = [
 ];
 
 function getRating(watchList){
-  // Add your code below this line
+  // Only change code below this line
   var averageRating;
 
 
-  // Add your code above this line
+  // Only change code above this line
   return averageRating;
 }
 console.log(getRating(watchList));
@@ -214,7 +214,7 @@ console.log(getRating(watchList));
 <section id='solution'>
 
 ```js
-// the global variable
+// The global variable
 var watchList = [
   {
     "Title": "Inception",

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

@@ -50,10 +50,10 @@ tests:
 
 ```js
 function checkPositive(arr) {
-  // Add your code below this line
+  // Only change code below this line
 
 
-  // Add your code above this line
+  // Only change code above this line
 }
 checkPositive([1, 2, 3, -4, 5]);
 ```
@@ -69,9 +69,9 @@ checkPositive([1, 2, 3, -4, 5]);
 
 ```js
 function checkPositive(arr) {
-  // Add your code below this line
+  // Only change code below this line
   return arr.some(elem => elem > 0);
-  // Add your code above this line
+  // Only change code above this line
 }
 checkPositive([1, 2, 3, -4, 5]);
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/add-methods-after-inheritance.english.md

@@ -74,17 +74,14 @@ Animal.prototype.eat = function() { console.log("nom nom nom"); };
 
 function Dog() { }
 
-// Add your code below this line
+// Only change code below this line
 
 
 
 
-// Add your code above this line
+// Only change code above this line
 
 let beagle = new Dog();
-
-beagle.eat(); // Should print "nom nom nom"
-beagle.bark(); // Should print "Woof!"
 ```
 
 </div>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/change-the-prototype-to-a-new-object.english.md

@@ -75,7 +75,7 @@ function Dog(name) {
 }
 
 Dog.prototype = {
-  // Add your code below this line
+  // Only change code below this line
 
 };
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/inherit-behaviors-from-a-supertype.english.md

@@ -81,13 +81,10 @@ Animal.prototype = {
   }
 };
 
-// Add your code below this line
+// Only change code below this line
 
 let duck; // Change this line
 let beagle; // Change this line
-
-duck.eat(); // Should print "nom nom nom"
-beagle.eat(); // Should print "nom nom nom"
 ```
 
 </div>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/iterate-over-all-properties.english.md

@@ -77,7 +77,7 @@ let beagle = new Dog("Snoopy");
 let ownProps = [];
 let prototypeProps = [];
 
-// Add your code below this line
+// Only change code below this line
 
 
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/override-inherited-methods.english.md

@@ -82,11 +82,11 @@ function Penguin() { }
 Penguin.prototype = Object.create(Bird.prototype);
 Penguin.prototype.constructor = Penguin;
 
-// Add your code below this line
+// Only change code below this line
 
 
 
-// Add your code above this line
+// Only change code above this line
 
 let penguin = new Penguin();
 console.log(penguin.fly());

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/reset-an-inherited-constructor-property.english.md

@@ -62,7 +62,7 @@ function Dog() { }
 Bird.prototype = Object.create(Animal.prototype);
 Dog.prototype = Object.create(Animal.prototype);
 
-// Add your code below this line
+// Only change code below this line
 
 
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/set-the-childs-prototype-to-an-instance-of-the-parent.english.md

@@ -58,11 +58,11 @@ Animal.prototype = {
 
 function Dog() { }
 
-// Add your code below this line
+// Only change code below this line
 
 
 let beagle = new Dog();
-beagle.eat();  // Should print "nom nom nom"
+
 ```
 
 </div>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/understand-own-properties.english.md

@@ -71,7 +71,7 @@ function Bird(name) {
 
 let canary = new Bird("Tweety");
 let ownProps = [];
-// Add your code below this line
+// Only change code below this line
 
 
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/understand-the-constructor-property.english.md

@@ -64,7 +64,7 @@ function Dog(name) {
   this.name = name;
 }
 
-// Add your code below this line
+// Only change code below this line
 function joinDogFraternity(candidate) {
 
 }

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/understand-where-an-objects-prototype-comes-from.english.md

@@ -55,7 +55,7 @@ function Dog(name) {
 
 let beagle = new Dog("Snoopy");
 
-// Add your code below this line
+// Only change code below this line
 
 
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/use-a-constructor-to-create-objects.english.md

@@ -68,7 +68,7 @@ function Dog() {
   this.color = "brown";
   this.numLegs = 4;
 }
-// Add your code below this line
+// Only change code below this line
 
 
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/use-a-mixin-to-add-common-behavior-between-unrelated-objects.english.md

@@ -82,7 +82,7 @@ let boat = {
   type: "race-boat"
 };
 
-// Add your code below this line
+// Only change code below this line
 
 
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/use-dot-notation-to-access-the-properties-of-an-object.english.md

@@ -50,7 +50,7 @@ let dog = {
   name: "Spot",
   numLegs: 4
 };
-// Add your code below this line
+// Only change code below this line
 
 
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/use-prototype-properties-to-reduce-duplicate-code.english.md

@@ -60,7 +60,7 @@ function Dog(name) {
 
 
 
-// Add your code above this line
+// Only change code above this line
 let beagle = new Dog("Snoopy");
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/verify-an-objects-constructor-with-instanceof.english.md

@@ -64,7 +64,7 @@ function House(numBedrooms) {
   this.numBedrooms = numBedrooms;
 }
 
-// Add your code below this line
+// Only change code below this line
 
 
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/regular-expressions/find-one-or-more-criminals-in-a-hunt.english.md

@@ -64,13 +64,8 @@ tests:
 <div id='js-seed'>
 
 ```js
-// example crowd gathering
-let crowd = 'P1P2P3P4P5P6CCCP7P8P9';
-
 let reCriminals = /./; // Change this line
 
-let matchedCriminals = crowd.match(reCriminals);
-console.log(matchedCriminals);
 ```
 
 </div>
@@ -83,13 +78,7 @@ console.log(matchedCriminals);
 <section id='solution'>
 
 ```js
-// example crowd gathering
-let crowd = 'P1P2P3P4P5P6CCCP7P8P9';
-
 let reCriminals = /C+/; // Change this line
-
-let matchedCriminals = crowd.match(reCriminals);
-
 ```
 
 </section>