From f334734e98b2c6c5c23225c9a427975013d94c5a Mon Sep 17 00:00:00 2001
From: Beau Carnes <1513130+beaucarnes@users.noreply.github.com>
Date: Mon, 31 Aug 2020 14:44:56 -0400
Subject: [PATCH] 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>
---
.../_meta/basic-javascript/meta.json | 4 +
...alue-of-one-variable-to-another.english.md | 105 ++++++++++++++++++
...es-with-the-assignment-operator.english.md | 23 +---
3 files changed, 115 insertions(+), 17 deletions(-)
create mode 100644 curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/assigning-the-value-of-one-variable-to-another.english.md
diff --git a/curriculum/challenges/_meta/basic-javascript/meta.json b/curriculum/challenges/_meta/basic-javascript/meta.json
index 2e9185d571..e21172410a 100644
--- a/curriculum/challenges/_meta/basic-javascript/meta.json
+++ b/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"
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/assigning-the-value-of-one-variable-to-another.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/assigning-the-value-of-one-variable-to-another.english.md
new file mode 100644
index 0000000000..a57964bb0e
--- /dev/null
+++ b/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
+
+
+After a value is assigned to a variable using the assignment operator, you can assign the value of that variable to another variable using the assignment 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`.
+
+
+
+## Instructions
+
+
+Assign the contents of a to variable b.
+
+
+## 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: b should have a value of 7.
+ testString: assert(typeof b === 'number' && b === 7);
+ - text: a should be assigned to b with =.
+ testString: assert(/b\s*=\s*a\s*/g.test(code));
+```
+
+
+
+## Challenge Seed
+
+
+
+
+
+```js
+// Setup
+var a;
+a = 7;
+var b;
+
+// Only change code below this line
+```
+
+
+
+### Before Test
+
+
+
+```js
+if (typeof a != 'undefined') {
+ a = undefined;
+}
+if (typeof b != 'undefined') {
+ b = undefined;
+}
+```
+
+
+
+### After Test
+
+
+
+```js
+(function(a, b) {
+ return 'a = ' + a + ', b = ' + b;
+})(a, b);
+```
+
+
+
+
+
+## Solution
+
+
+
+```js
+var a;
+a = 7;
+var b;
+b = a;
+```
+
+
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/storing-values-with-the-assignment-operator.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/storing-values-with-the-assignment-operator.english.md
index 732824e328..cbd55880d4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/storing-values-with-the-assignment-operator.english.md
+++ b/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
-In JavaScript, you can store a value in a variable with the assignment operator.
+In JavaScript, you can store a value in a variable with the assignment operator (=).
myVariable = 5;
This assigns the Number value 5 to myVariable.
-Assignment always goes from right to left. Everything to the right of the = 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 = 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 5 to myVar and then resolves myVar to 5 again and assigns it to myNum.
+First, this code creates a variable named myVar. Then, the code assigns 5 to myVar. Now, if myVar appears again in the code, the program will treat it as if it is 5.
## Instructions
Assign the value 7 to variable a.
-Assign the contents of a to variable b.
## Tests
@@ -34,13 +33,9 @@ Assign the contents of a to variable b.
```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: a should have a value of 7.
testString: assert(typeof a === 'number' && a === 7);
- - text: b should have a value of 7.
- testString: assert(typeof b === 'number' && b === 7);
- - text: a should be assigned to b with =.
- 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;
-}
```
@@ -80,7 +71,7 @@ if (typeof b != 'undefined') {
```js
-(function(a,b){return "a = " + a + ", b = " + b;})(a,b);
+(function(a){return "a = " + a;})(a);
```
@@ -93,9 +84,7 @@ if (typeof b != 'undefined') {
```js
var a;
-var b = 2;
a = 7;
-b = a;
```