fix(curriculum): Consolidated comments for JavaScript Algorithms and Data Structures challenges - part 2 of 4 (#38259)

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/access-an-arrays-contents-using-bracket-notation.english.md

@@ -63,9 +63,9 @@ tests:
 
 ```js
 let myArray = ["a", "b", "c", "d"];
-// change code below this line
+// Only change code below this line
 
-//change code above this line
+// Only change code above this line
 console.log(myArray);
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/access-property-names-with-bracket-notation.english.md

@@ -56,14 +56,13 @@ let foods = {
   grapes: 35,
   strawberries: 27
 };
-// do not change code above this line
 
 function checkInventory(scannedItem) {
-  // change code below this line
+  // Only change code below this line
 
+  // Only change code above this line
 }
 
-// change code below this line to test different cases:
 console.log(checkInventory("apples"));
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/add-items-to-an-array-with-push-and-unshift.english.md

@@ -51,13 +51,12 @@ tests:
 
 ```js
 function mixedNumbers(arr) {
-  // change code below this line
+  // Only change code below this line
 
-  // change code above this line
+  // Only change code above this line
   return arr;
 }
 
-// do not change code below this line
 console.log(mixedNumbers(['IV', 5, 'six']));
 ```
 
@@ -72,10 +71,8 @@ console.log(mixedNumbers(['IV', 5, 'six']));
 
 ```js
 function mixedNumbers(arr) {
-  // change code below this line
   arr.push(7,'VIII',9);
   arr.unshift('I',2,'three');
-  // change code above this line
   return arr;
 }
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/add-items-using-splice.english.md

@@ -53,13 +53,12 @@ tests:
 
 ```js
 function htmlColorNames(arr) {
-  // change code below this line
+  // Only change code below this line
 
-  // change code above this line
+  // Only change code above this line
   return arr;
 }
 
-// do not change code below this line
 console.log(htmlColorNames(['DarkGoldenRod', 'WhiteSmoke', 'LavenderBlush', 'PaleTurquoise', 'FireBrick']));
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/add-key-value-pairs-to-javascript-objects.english.md

@@ -72,9 +72,9 @@ let foods = {
   plums: 28
 };
 
-// change code below this line
+// Only change code below this line
 
-// change code above this line
+// Only change code above this line
 
 console.log(foods);
 ```
@@ -95,11 +95,9 @@ let foods = {
   plums: 28
 };
 
-// change code below this line
 foods['bananas'] = 13;
 foods['grapes']  = 35;
 foods['strawberries'] = 27;
-// change code above this line
 ```
 
 </section>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/check-for-the-presence-of-an-element-with-indexof.english.md

@@ -52,12 +52,11 @@ tests:
 
 ```js
 function quickCheck(arr, elem) {
-  // change code below this line
+  // Only change code below this line
 
-  // change code above this line
+  // Only change code above this line
 }
 
-// change code here to test different cases:
 console.log(quickCheck(['squash', 'onions', 'shallots'], 'mushrooms'));
 ```
 
@@ -72,9 +71,7 @@ console.log(quickCheck(['squash', 'onions', 'shallots'], 'mushrooms'));
 
 ```js
 function quickCheck(arr, elem) {
-  // change code below this line
   return arr.indexOf(elem) >= 0; 
-  // change code above this line
 }
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/check-if-an-object-has-a-property.english.md

@@ -69,9 +69,9 @@ let users = {
 };
 
 function isEveryoneHere(obj) {
-  // change code below this line
+  // Only change code below this line
 
-  // change code above this line
+  // Only change code above this line
 }
 
 console.log(isEveryoneHere(users));

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/combine-arrays-with-the-spread-operator.english.md

@@ -46,11 +46,10 @@ tests:
 ```js
 function spreadOut() {
   let fragment = ['to', 'code'];
-  let sentence; // change this line
+  let sentence; // Change this line
   return sentence;
 }
 
-// do not change code below this line
 console.log(spreadOut());
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/copy-an-array-with-the-spread-operator.english.md

@@ -53,15 +53,14 @@ tests:
 function copyMachine(arr, num) {
   let newArr = [];
   while (num >= 1) {
-    // change code below this line
+    // Only change code below this line
 
-    // change code above this line
+    // Only change code above this line
     num--;
   }
   return newArr;
 }
 
-// change code here to test different cases:
 console.log(copyMachine([true, false, true], 2));
 ```
 
@@ -85,9 +84,7 @@ const removeJSComments = str => str.replace(/\/\*[\s\S]*?\*\/|\/\/.*$/gm, '');
 function copyMachine(arr,num){
 	let newArr=[];
 	while(num >=1){
-	// change code below this line 
 	newArr.push([...arr]);
-	//change code above this line
 	num--;
 	}
 	return newArr;

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/copy-array-items-using-slice.english.md

@@ -46,12 +46,12 @@ tests:
 
 ```js
 function forecast(arr) {
-  // change code below this line
+  // Only change code below this line
 
   return arr;
 }
 
-// do not change code below this line
+// Only change code above this line
 console.log(forecast(['cold', 'rainy', 'warm', 'sunny', 'cool', 'thunderstorms']));
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/create-complex-multi-dimensional-arrays.english.md

@@ -80,13 +80,13 @@ tests:
 
 ```js
 let myNestedArray = [
-  // change code below this line
+  // Only change code below this line
   ['unshift', false, 1, 2, 3, 'complex', 'nested'],
   ['loop', 'shift', 6, 7, 1000, 'method'],
   ['concat', false, true, 'spread', 'array'],
   ['mutate', 1327.98, 'splice', 'slice', 'push'],
   ['iterate', 1.3849, 7, '8.4876', 'arbitrary', 'depth']
-  // change code above this line
+  // Only change code above this line
 ];
 ```
 
@@ -101,13 +101,11 @@ let myNestedArray = [
 
 ```js
 let myNestedArray = [
-  // change code below this line
   ['unshift', ['deep', ['deeper', ['deepest']]],false, 1, 2, 3, 'complex', 'nested'],
   ['loop', 'shift', 6, 7, 1000, 'method'],
   ['concat', false, true, 'spread', 'array'],
   ['mutate', 1327.98, 'splice', 'slice', 'push'],
   ['iterate', 1.3849, 7, '8.4876', 'arbitrary', 'depth']
-  // change code above this line
 ];
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/generate-an-array-of-all-object-keys-with-object.keys.english.md

@@ -55,9 +55,9 @@ let users = {
 };
 
 function getArrayOfUsers(obj) {
-  // change code below this line
+  // Only change code below this line
 
-  // change code above this line
+  // Only change code above this line
 }
 
 console.log(getArrayOfUsers(users));

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/remove-items-from-an-array-with-pop-and-shift.english.md

@@ -58,12 +58,11 @@ tests:
 
 ```js
 function popShift(arr) {
-  let popped; // change this line
+  let popped; // Change this line
-  let shifted; // change this line
+  let shifted; // Change this line
   return [shifted, popped];
 }
 
-// do not change code below this line
 console.log(popShift(['challenge', 'is', 'not', 'complete']));
 ```
 
@@ -78,8 +77,8 @@ console.log(popShift(['challenge', 'is', 'not', 'complete']));
 
 ```js
 function popShift(arr) {
-  let popped = arr.pop(); // change this line
+  let popped = arr.pop(); // Change this line
-  let shifted = arr.shift(); // change this line
+  let shifted = arr.shift(); // Change this line
   return [shifted, popped];
 }
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/remove-items-using-splice.english.md

@@ -60,9 +60,9 @@ tests:
 
 ```js
 const arr = [2, 4, 5, 1, 7, 5, 2, 1];
-// only change code below this line
+// Only change code below this line
 
-// only change code above this line
+// Only change code above this line
 console.log(arr);
 ```
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/use-an-array-to-store-a-collection-of-data.english.md

@@ -76,7 +76,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-let yourArray; // change this line
+let yourArray; // Change this line
 ```
 
 </div>

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

@@ -54,7 +54,7 @@ var ourData = ourArray[0]; // equals 50
 // Setup
 var myArray = [50,60,70];
 
-// Only change code below this line.
+// Only change code below this line
 
 ```
 

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

@@ -54,7 +54,7 @@ tests:
 // Setup
 var myArray = [[1,2,3], [4,5,6], [7,8,9], [[10,11,12], 13, 14]];
 
-// Only change code below this line.
+// Only change code below this line
 var myData = myArray[0][0];
 
 ```

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

@@ -77,7 +77,7 @@ var testObj = {
   19: "Unitas"
 };
 
-// Only change code below this line;
+// Only change code below this line
 
 var playerNumber;       // Change this Line
 var player = testObj;   // Change this Line

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

@@ -59,7 +59,7 @@ var myDog = {
   "friends": ["freeCodeCamp Campers"]
 };
 
-// Only change code below this line.
+// Only change code below this line
 
 ```
 

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

@@ -75,7 +75,7 @@ var ourDog = {
   "friends": ["everything!"]
 };
 
-// Only change code below this line.
+// Only change code below this line
 
 var myDog = {
 

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

@@ -70,7 +70,6 @@ function testGreaterThan(val) {
   return "10 or Under";
 }
 
-// Change this value to test
 testGreaterThan(10);
 ```
 

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

@@ -56,12 +56,10 @@ var a = 3;
 var b = 17;
 var c = 12;
 
-// Only modify code below this line
+// Only change code below this line
-
 a = a + 12;
 b = 9 + b;
 c = c + 7;
-
 ```
 
 </div>

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

@@ -49,12 +49,10 @@ var a = 48;
 var b = 108;
 var c = 33;
 
-// Only modify code below this line
+// Only change code below this line
-
 a = a / 12;
 b = b / 4;
 c = c / 11;
-
 ```
 
 </div>

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

@@ -49,13 +49,10 @@ var a = 5;
 var b = 12;
 var c = 4.6;
 
-// Only modify code below this line
+// Only change code below this line
-
 a = a * 5;
 b = 3 * b;
 c = c * 10;
-
-
 ```
 
 </div>

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

@@ -49,13 +49,10 @@ var a = 11;
 var b = 9;
 var c = 3;
 
-// Only modify code below this line
+// Only change code below this line
-
 a = a - 6;
 b = b - 15;
 c = c - 1;
-
-
 ```
 
 </div>

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

@@ -60,7 +60,7 @@ for (var i = 10; i > 0; i -= 2) {
 // Setup
 var myArray = [];
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -25,7 +25,7 @@ creates a <code>variable</code> called <code>ourName</code>. In JavaScript we en
 ## Instructions
 <section id='instructions'>
 Use the <code>var</code> keyword to create a variable called <code>myName</code>.
-<strong>Hint</strong><br>Look at the <code>ourName</code> example if you get stuck.
+<strong>Hint</strong><br>Look at the <code>ourName</code> example above if you get stuck.
 </section>
 
 ## Tests
@@ -46,10 +46,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Example
-var ourName;
 
-// Declare myName below this line
 
 ```
 

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

@@ -57,7 +57,7 @@ var myDog = {
   "bark": "woof"
 };
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -38,7 +38,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-var quotient = 0.0 / 2.0; // Fix this line
+var quotient = 0.0 / 2.0; // Change this line
 ```
 
 </div>

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

@@ -50,7 +50,7 @@ firstNameLength = firstName.length;
 var lastNameLength = 0;
 var lastName = "Lovelace";
 
-// Only change code below this line.
+// Only change code below this line
 
 lastNameLength = lastName;
 

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

@@ -42,11 +42,11 @@ tests:
 ```js
 function randomFraction() {
 
-  // Only change code below this line.
+  // Only change code below this line
 
   return 0;
 
-  // Only change code above this line.
+  // Only change code above this line
 }
 ```
 

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

@@ -49,7 +49,7 @@ var randomNumberBetween0and19 = Math.floor(Math.random() * 20);
 
 function randomWholeNum() {
 
-  // Only change code below this line.
+  // Only change code below this line
 
   return Math.random();
 }

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

@@ -51,7 +51,7 @@ function ourRandomRange(ourMin, ourMax) {
 
 ourRandomRange(1, 9);
 
-// Only change code below this line.
+// Only change code below this line
 
 function randomRange(myMin, myMax) {
 

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

@@ -14,7 +14,7 @@ Variables which are used without the <code>var</code> keyword are automatically
 
 ## Instructions
 <section id='instructions'>
-Using <code>var</code>, declare a <code>global</code> variable <code>myGlobal</code> outside of any function. Initialize it with a value of <code>10</code>.
+Using <code>var</code>, declare a global variable named <code>myGlobal</code> outside of any function. Initialize it with a value of <code>10</code>.
 Inside function <code>fun1</code>, assign <code>5</code> to <code>oopsGlobal</code> <strong><em>without</em></strong> using the <code>var</code> keyword.
 </section>
 
@@ -42,7 +42,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Declare your variable here
+// Declare the myGlobal variable below this line
 
 
 function fun1() {
@@ -51,6 +51,7 @@ function fun1() {
 }
 
 // Only change code above this line
+
 function fun2() {
   var output = "";
   if (typeof myGlobal != "undefined") {
@@ -112,15 +113,12 @@ uncapture();
 
 
 ```js
-// Declare your variable here
 var myGlobal = 10;
 
 function fun1() {
-  // Assign 5 to oopsGlobal Here
   oopsGlobal = 5;
 }
 
-// Only change code above this line
 function fun2() {
   var output = "";
   if(typeof myGlobal != "undefined") {

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

@@ -57,7 +57,7 @@ for (var i = 0; i < 10; i += 2) {
 // Setup
 var myArray = [];
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -62,7 +62,7 @@ for (var i = 0; i < 5; i++) {
 // Setup
 var myArray = [];
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -53,7 +53,7 @@ tests:
 // Setup
 var myArray = [];
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -51,7 +51,9 @@ tests:
 
 ```js
 function myLocalScope() {
-  'use strict'; // you shouldn't need to edit this line
+  'use strict';
+
+  // Only change code below this line
 
   console.log(myVar);
 }

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

@@ -56,7 +56,7 @@ var removedFromOurArray = ourArray.pop();
 // Setup
 var myArray = [["John", 23], ["cat", 2]];
 
-// Only change code below this line.
+// Only change code below this line
 var removedFromMyArray;
 
 

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

@@ -50,7 +50,7 @@ ourArray.push(["happy", "joy"]);
 // Setup
 var myArray = [["John", 23], ["cat", 2]];
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -45,7 +45,7 @@ var removedFromOurArray = ourArray.shift();
 // Setup
 var myArray = [["John", 23], ["dog", 3]];
 
-// Only change code below this line.
+// Only change code below this line
 var removedFromMyArray;
 
 
@@ -72,7 +72,7 @@ var removedFromMyArray;
 ```js
 var myArray = [["John", 23], ["dog", 3]];
 
-// Only change code below this line.
+// Only change code below this line
 var removedFromMyArray = myArray.shift();
 ```
 

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

@@ -45,7 +45,7 @@ ourArray.unshift("Happy");
 var myArray = [["John", 23], ["dog", 3]];
 myArray.shift();
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -51,7 +51,7 @@ ourArray[1] = 45; // ourArray now equals [18,45,99].
 // Setup
 var myArray = [18,64,99];
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -37,7 +37,7 @@ tests:
 // Example
 var ourArray = [["the universe", 42], ["everything", 101010]];
 
-// Only change code below this line.
+// Only change code below this line
 var myArray = [];
 
 ```

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

@@ -59,7 +59,6 @@ function multiplyAll(arr) {
   return product;
 }
 
-// Modify values below to test your code
 multiplyAll([[1,2],[3,4],[5,6,7]]);
 
 ```

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

@@ -57,7 +57,7 @@ function ourFunctionWithArgs(a, b) {
 }
 ourFunctionWithArgs(10, 5); // Outputs 5
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -49,7 +49,7 @@ tests:
 <div id='js-seed'>
 
 ```js
-//Setup
+// Setup
 var contacts = [
     {
         "firstName": "Akira",

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

@@ -68,7 +68,6 @@ function abTest(a, b) {
   return Math.round(Math.pow(Math.sqrt(a) + Math.sqrt(b), 2));
 }
 
-// Change values below to test your code
 abTest(2,2);
 ```
 

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

@@ -59,12 +59,13 @@ tests:
 
 ```js
 function isLess(a, b) {
-  // Fix this code
+  // Only change code below this line
   if (a < b) {
     return true;
   } else {
     return false;
   }
+  // Only change code above this line
 }
 
 // Change these values to test

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

@@ -46,17 +46,20 @@ tests:
 
 ```js
 function nextInLine(arr, item) {
-  // Your code here
+  // Only change code below this line
+  
+  return item;
+  // Only change code above this line
+  
 
-  return item;  // Change this line
 }
 
-// Test Setup
+// Setup
 var testArr = [1,2,3,4,5];
 
-// Display Code
+// Display code
 console.log("Before: " + JSON.stringify(testArr));
-console.log(nextInLine(testArr, 6)); // Modify this line to test
+console.log(nextInLine(testArr, 6));
 console.log("After: " + JSON.stringify(testArr));
 ```
 

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

@@ -44,7 +44,7 @@ tests:
 // Example
 var ourArray = ["John", 23];
 
-// Only change code below this line.
+// Only change code below this line
 var myArray = [];
 
 ```

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

@@ -62,7 +62,6 @@ function checkObj(checkProp) {
   return "Change Me!";
 }
 
-// Test your code by modifying these values
 checkObj("gift");
 ```
 

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

@@ -54,9 +54,8 @@ tests:
 var myStr = "Jello World";
 
 // Only change code below this line
-
+myStr[0] = "H"; // Change this line
-myStr[0] = "H"; // Fix Me
+// Only change code above this line
-
 
 ```
 

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

@@ -39,11 +39,11 @@ tests:
 ```js
 function welcomeToBooleans() {
 
-  // Only change code below this line.
+  // Only change code below this line
 
   return false; // Change this line
 
-  // Only change code above this line.
+  // Only change code above this line
 }
 ```
 

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

@@ -55,12 +55,12 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Declarations
+// Variable declarations
 var StUdLyCapVaR;
 var properCamelCase;
 var TitleCaseOver;
 
-// Assignments
+// Variable assignments
 STUDLYCAPVAR = 10;
 PRoperCAmelCAse = "A String";
 tITLEcASEoVER = 9000;

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

@@ -40,17 +40,15 @@ tests:
 <div id='js-seed'>
 
 ```js
-// Initialize these three variables
+// Only change code below this line
 var a;
 var b;
 var c;
-
+// Only change code above this line
-// Do not change code below this line
 
 a = a + 1;
 b = b + 5;
 c = c + " String!";
-
 ```
 
 </div>

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

@@ -69,7 +69,7 @@ var myDog = {
   "friends": ["freeCodeCamp Campers"]
 };
 
-// Only change code below this line.
+// Only change code below this line
 
 
 ```

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

@@ -45,7 +45,7 @@ var lastLetterOfFirstName = firstName[firstName.length - 1];
 // Setup
 var lastName = "Lovelace";
 
-// Only change code below this line.
+// Only change code below this line
 var lastLetterOfLastName = lastName;
 
 

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

@@ -45,7 +45,7 @@ var secondLetterOfFirstName = firstName[1];
 // Setup
 var lastName = "Lovelace";
 
-// Only change code below this line.
+// Only change code below this line
 var thirdLetterOfLastName = lastName;
 
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-conditional-logic-with-if-statements.english.md

@@ -70,11 +70,11 @@ function ourTrueOrFalse(isItTrue) {
 // Setup
 function trueOrFalse(wasThatTrue) {
 
-  // Only change code below this line.
+  // Only change code below this line
 
 
 
-  // Only change code above this line.
+  // Only change code above this line
 
 }
 

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-recursion-to-create-a-countdown.english.md

@@ -67,10 +67,11 @@ tests:
 ```js
 
 
-//Only change code below this line
+// Only change code below this line
 function countdown(n){
   return;
 }
+// Only change code above this line
 console.log(countdown(5)); // [5, 4, 3, 2, 1]
 ```
 
@@ -91,7 +92,6 @@ const removeJSComments = str => str.replace(/\/\*[\s\S]*?\*\/|\/\/.*$/gm, '');
 <section id='solution'>
 
 ```js
-//Only change code below this line
 function countdown(n){
    return n < 1 ? [] : [n].concat(countdown(n - 1));
 }

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/word-blanks.english.md

@@ -54,8 +54,9 @@ var myAdjective = "big";
 var myVerb = "ran";
 var myAdverb = "quickly";
 
-var wordBlanks = ""; // Only change this line;
+// Only change code below this line
-
+var wordBlanks = ""; // Change this line
+// Only change code above this line
 ```
 
 </div>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/debugging/catch-off-by-one-errors-when-using-indexing.english.md

@@ -61,9 +61,9 @@ tests:
 function countToFive() {
   let firstFive = "12345";
   let len = firstFive.length;
-  // Fix the line below
+  // Only change code below this line
   for (let i = 1; i <= len; i++) {
-  // Do not alter code below this line
+  // Only change code above this line
     console.log(firstFive[i]);
   }
 }
@@ -84,9 +84,9 @@ countToFive();
 function countToFive() {
  let firstFive = "12345";
  let len = firstFive.length;
- // Fix the line below
+ // Only change code below this line
  for (let i = 0; i < len; i++) {
- // Do not alter code below this line
+ // Only change code above this line
    console.log(firstFive[i]);
  }
 }

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/complete-a-promise-with-resolve-and-reject.english.md

@@ -50,9 +50,9 @@ const makeServerRequest = new Promise((resolve, reject) => {
   let responseFromServer;
 	
   if(responseFromServer) {
-    // change this line
+    // Change this line
   } else {	
-    // change this line
+    // Change this line
   }
 });
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-the-spread-operator-to-evaluate-arrays-in-place.english.md

@@ -62,7 +62,7 @@ tests:
 const arr1 = ['JAN', 'FEB', 'MAR', 'APR', 'MAY'];
 let arr2;
 
-arr2 = [];  // change this line
+arr2 = [];  // Change this line
 
 console.log(arr2);
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/write-arrow-functions-with-parameters.english.md

@@ -65,7 +65,7 @@ var myConcat = function(arr1, arr2) {
   "use strict";
   return arr1.concat(arr2);
 };
-// test your code
+
 console.log(myConcat([1, 2], [3, 4, 5]));
 ```
 
@@ -83,7 +83,7 @@ const myConcat = (arr1, arr2) =>  {
   "use strict";
   return arr1.concat(arr2);
 };
-// test your code
+
 console.log(myConcat([1, 2], [3, 4, 5]));
 ```
 

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

@@ -44,12 +44,11 @@ tests:
 
 ```js
 const squareList = (arr) => {
-  // only change code below this line
+  // Only change code below this line
   return arr;
-  // only change code above this line
+  // Only change code above this line
 };
 
-// test your code
 const squaredIntegers = squareList([-3, 4.8, 5, 3, -3.2]);
 console.log(squaredIntegers);
 ```

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/remember-to-set-the-constructor-property-when-changing-the-prototype.english.md

@@ -59,7 +59,7 @@ function Dog(name) {
   this.name = name;
 }
 
-// Modify the code below this line
+// Only change code below this line
 Dog.prototype = {
 
   numLegs: 4,

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/regular-expressions/match-characters-that-occur-zero-or-more-times.english.md

@@ -55,7 +55,10 @@ tests:
 <div id='js-seed'>
 
 ```js
-let chewieRegex = /change/; // Only change this line
+// Only change code below this line
+let chewieRegex = /change/; // Change this line
+// Only change code above this line
+
 let result = chewieQuote.match(chewieRegex);
 ```