Copy edits (#35536)

* Copy edits to Basic JavaScript section

* Copy edits to ES6 section

* Update index.md

guide/english/certifications/javascript-algorithms-and-data-structures/basic-javascript/adding-a-default-option-in-switch-statements/index.md

@@ -11,7 +11,7 @@ title: Adding a Default Option in Switch Statements
 function switchOfStuff(val) {
   var answer = "";
   
-  switch(val){
+  switch (val){
     case 'a': answer = 'apple'; 
     break;
     case 'b': answer = 'bird'; 

guide/english/certifications/javascript-algorithms-and-data-structures/basic-javascript/counting-cards/index.md

@@ -58,7 +58,7 @@ After you've counted the cards, use an `if` statement to check the value of **co
 ```javascript
     function cc(card) {
       // Only change code below this line
-      switch(card){
+      switch (card){
         case 2:
         case 3:
         case 4:

guide/english/certifications/javascript-algorithms-and-data-structures/basic-javascript/multiple-identical-options-in-switch-statements/index.md

@@ -7,7 +7,7 @@ title: Multiple Identical Options in Switch Statements
 
 _If the break statement is omitted from a switch statement's case, the following case statement(s) are executed until a break is encountered. If you have multiple inputs with the same output, you can represent them in a switch statement like this:_
 ```javascript
-switch(val) {
+switch (val) {
   case 1:
   case 2:
   case 3:
@@ -37,7 +37,7 @@ You will need to have a case statement for each number in the range._
 function sequentialSizes(val) {
   var answer = "";
   // Only change code below this line
-  switch(val) {
+  switch (val) {
     case 1:
     case 2:
     case 3:
@@ -67,7 +67,7 @@ sequentialSizes(1);
 function sequentialSizes(val) {
   var answer = "";
   // Only change code below this line
-  switch(val){
+  switch (val){
     case 1: case 2: case 3:
       answer = "Low";
       break;

guide/english/certifications/javascript-algorithms-and-data-structures/basic-javascript/profile-lookup/index.md

@@ -56,7 +56,7 @@ Leave your `return "No such contact"` out of the `for` loop as a final catch-all
 
 
 ``` javascript    
-for (var x = 0; x < contacts.length; x++){
+for (var x = 0; x < contacts.length; x++) {
     if (contacts[x].firstName === name) {
         if (contacts[x].hasOwnProperty(prop)) {
             return contacts[x][prop];

guide/english/certifications/javascript-algorithms-and-data-structures/basic-javascript/record-collection/index.md

@@ -55,7 +55,7 @@ To access the value of a key in this object, you will use `collection[id][prop]`
 
     function updateRecords(id, prop, value) {
       if (prop === "tracks" && value !== "") {
-       if(collection[id][prop]) {
+       if (collection[id][prop]) {
         collection[id][prop].push(value);
        }
        else {

guide/english/certifications/javascript-algorithms-and-data-structures/basic-javascript/replacing-if-else-chains-with-switch/index.md

@@ -11,7 +11,7 @@ Here’s the setup:
 function chainToSwitch(val) {
   var answer = "";
   // Only change code below this line
-  switch(val) {
+  switch (val) {
     case "bob":
         answer = "Marley";
         break;
@@ -58,14 +58,14 @@ We need to change the chained ```if/else if``` statements into a ```switch``` st
  Next, we need to create simple ```switch``` statement:
 
  ```javascript
- switch(val) {
+ switch (val) {
  }
  ```
 
  and add in this ```switch``` statement ```case``` - for all ```if/else if``` statement (just copy it from our commented code above):
 
   ```javascript
-  switch(val) {
+  switch (val) {
     case "bob":
         answer = "Marley";
         break;
@@ -93,7 +93,7 @@ We need to change the chained ```if/else if``` statements into a ```switch``` st
  function chainToSwitch(val) {
   var answer = "";
   // Only change code below this line
-  switch(val) {
+  switch (val) {
     case "bob":
         answer = "Marley";
         break;

guide/english/certifications/javascript-algorithms-and-data-structures/basic-javascript/selecting-from-many-options-with-switch-statements/index.md

@@ -8,7 +8,7 @@ _If you have many options to choose from, use a `switch` statement. A `switch` s
 _Here is a pseudocode example:_
 
 ```js
-  switch(num) {
+  switch (num) {
     case value1:
       statement1;
       break;
@@ -54,7 +54,7 @@ Do not see _"following conditions"_ as an ordered list as it looks in the origin
 function caseInSwitch(val) {
   var answer = "";
   // Only change code below this line
-  switch(val) {
+  switch (val) {
     case 1:
       return "alpha";
       break;

guide/english/certifications/javascript-algorithms-and-data-structures/basic-javascript/using-objects-for-lookups/index.md

@@ -12,7 +12,7 @@ function phoneticLookup(val) {
   var result = "";
 
   // Only change code below this line
-  switch(val) {
+  switch (val) {
     case "alpha": 
       result = "Adams";
       break;

guide/english/certifications/javascript-algorithms-and-data-structures/es6/declare-a-read-only-variable-with-the-const-keyword/index.md

@@ -38,7 +38,7 @@ Change all the variables to `let` or `const` and rename `sentence`.
     function printManyTimes(str) {
       "use strict";
       const SENTENCE = str + " is cool!";
-      for(let i = 0; i < str.length; i+=2) {
+      for (let i = 0; i < str.length; i+=2) {
         console.log(SENTENCE);
       }
     }

guide/english/certifications/javascript-algorithms-and-data-structures/es6/prevent-object-mutation/index.md

@@ -31,7 +31,7 @@ _You need to freeze the `MATH_CONSTANTS` object so that no one is able to alter
       
       try {
         MATH_CONSTANTS.PI = 99;
-      } catch( ex ) {
+      } catch(ex) {
         console.log(ex);
       }
       return MATH_CONSTANTS.PI;

guide/english/certifications/javascript-algorithms-and-data-structures/es6/use-getters-and-setters-to-control-access-to-an-object/index.md

@@ -31,14 +31,14 @@ function makeClass() {
   "use strict";
   /* Alter code below this line */
   
-  class Thermostat{
-    constructor(fahrenheit){
+  class Thermostat {
+    constructor(fahrenheit) {
       this.fahrenheit = fahrenheit;
     }
-    get temperature(){
+    get temperature() {
       return 5 / 9 * (this.fahrenheit - 32);
     }
-    set temperature(celsius){
+    set temperature(celsius) {
       this.fahrenheit = celsius * 9.0 / 5 + 32;
     }
   }

guide/english/certifications/javascript-algorithms-and-data-structures/es6/write-higher-order-arrow-functions/index.md

@@ -35,7 +35,7 @@ We need to compute and square values from the `realNumberArray` and store them i
 ```javascript
     const squareList = (arr) => {
       "use strict";
-      const squaredIntegers = arr.filter( (num) => num > 0 && num % parseInt(num) === 0 ).map( (num) => Math.pow(num, 2) );
+      const squaredIntegers = arr.filter((num) => num > 0 && num % parseInt(num) === 0).map((num) => Math.pow(num, 2));
       return squaredIntegers;
     };