feat: split JS challenge into two (#39044)

* feat: split JS challenge into two

* fix/change-to-not-use-untaught-assignments

Co-authored-by: moT01 <20648924+moT01@users.noreply.github.com>

curriculum/challenges/_meta/basic-javascript/meta.json

@@ -20,6 +20,10 @@
       "56533eb9ac21ba0edf2244a8",
       "Storing Values with the Assignment Operator"
     ],
+    [
+      "5ee127a03c3b35dd45426493",
+      "Assigning the Value of One Variable to Another"
+    ],
     [
       "56533eb9ac21ba0edf2244a9",
       "Initializing Variables with the Assignment Operator"

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

@@ -0,0 +1,105 @@
+---
+id: 5ee127a03c3b35dd45426493
+title: Assigning the Value of One Variable to Another
+challengeType: 1
+isHidden: false
+videoUrl: ''
+forumTopicId: 418265
+---
+
+## Description
+
+<section id='description'>
+After a value is assigned to a variable using the <dfn>assignment</dfn> operator, you can assign the value of that variable to another variable using the <dfn>assignment</dfn> operator.
+
+```js
+var myVar;
+myVar = 5;
+var myNum;
+myNum = myVar;
+```
+
+The above declares a `myVar` variable with no value, then assigns it the value `5`. Next, a variable named `myNum` is declared with no value. Then, the contents of `myVar` (which is `5`) is assigned to the variable `myNum`. Now, `myNum` also has the value of `5`.
+
+</section>
+
+## Instructions
+
+<section id='instructions'>
+Assign the contents of <code>a</code> to variable <code>b</code>.
+</section>
+
+## Tests
+
+<section id='tests'>
+
+```yml
+tests:
+  - text: You should not change code above the specified comment.
+    testString: assert(/var a;/.test(code) && /a = 7;/.test(code) &&  /var b;/.test(code));
+  - text: <code>b</code> should have a value of 7.
+    testString: assert(typeof b === 'number' && b === 7);
+  - text: <code>a</code> should be assigned to <code>b</code> with <code>=</code>.
+    testString: assert(/b\s*=\s*a\s*/g.test(code));
+```
+
+</section>
+
+## Challenge Seed
+
+<section id='challengeSeed'>
+
+<div id='js-seed'>
+
+```js
+// Setup
+var a;
+a = 7;
+var b;
+
+// Only change code below this line
+```
+
+</div>
+
+### Before Test
+
+<div id='js-setup'>
+
+```js
+if (typeof a != 'undefined') {
+  a = undefined;
+}
+if (typeof b != 'undefined') {
+  b = undefined;
+}
+```
+
+</div>
+
+### After Test
+
+<div id='js-teardown'>
+
+```js
+(function(a, b) {
+  return 'a = ' + a + ', b = ' + b;
+})(a, b);
+```
+
+</div>
+
+</section>
+
+## Solution
+
+<section id='solution'>
+
+```js
+var a;
+a = 7;
+var b;
+b = a;
+```
+
+</section>

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

@@ -9,23 +9,22 @@ forumTopicId: 18310
 
 ## Description
 <section id='description'>
-In JavaScript, you can store a value in a variable with the <dfn>assignment</dfn> operator.
+In JavaScript, you can store a value in a variable with the <dfn>assignment</dfn> operator (<code>=</code>). 
 <code>myVariable = 5;</code>
 This assigns the <code>Number</code> value <code>5</code> to <code>myVariable</code>.
-Assignment always goes from right to left. Everything to the right of the <code>=</code> operator is resolved before the value is assigned to the variable to the left of the operator.
+If there are any calculations to the right of the <code>=</code> operator, those are performed before the value is assigned to the variable on the left of the operator.
 
 ```js
+var myVar;
 myVar = 5;
-myNum = myVar;
 ```
 
-This assigns <code>5</code> to <code>myVar</code> and then resolves <code>myVar</code> to <code>5</code>  again and assigns it to <code>myNum</code>.
+First, this code creates a variable named <code>myVar</code>. Then, the code assigns <code>5</code> to <code>myVar</code>. Now, if <code>myVar</code> appears again in the code, the program will treat it as if it is <code>5</code>.
 </section>
 
 ## Instructions
 <section id='instructions'>
 Assign the value <code>7</code> to variable <code>a</code>.
-Assign the contents of <code>a</code> to variable <code>b</code>.
 </section>
 
 ## Tests
@@ -34,13 +33,9 @@ Assign the contents of <code>a</code> to variable <code>b</code>.
 ```yml
 tests:
   - text: You should not change code above the specified comment.
-    testString: assert(/var a;/.test(code) && /var b = 2;/.test(code));
+    testString: assert(/var a;/.test(code));
   - text: <code>a</code> should have a value of 7.
     testString: assert(typeof a === 'number' && a === 7);
-  - text: <code>b</code> should have a value of 7.
-    testString: assert(typeof b === 'number' && b === 7);
-  - text: <code>a</code> should be assigned to <code>b</code> with <code>=</code>.
-    testString: assert(/b\s*=\s*a\s*;/g.test(code));
 
 ```
 
@@ -54,7 +49,6 @@ tests:
 ```js
 // Setup
 var a;
-var b = 2;
 
 // Only change code below this line
 
@@ -69,9 +63,6 @@ var b = 2;
 if (typeof a != 'undefined') {
   a = undefined;
 }
-if (typeof b != 'undefined') {
-  b = undefined;
-}
 ```
 
 </div>
@@ -80,7 +71,7 @@ if (typeof b != 'undefined') {
 <div id='js-teardown'>
 
 ```js
-(function(a,b){return "a = " + a + ", b = " + b;})(a,b);
+(function(a){return "a = " + a;})(a);
 ```
 
 </div>
@@ -93,9 +84,7 @@ if (typeof b != 'undefined') {
 
 ```js
 var a;
-var b = 2;
 a = 7;
-b = a;
 ```
 
 </section>