chore: import upstream snapshot with attribution

curriculum/challenges/english/blocks/basic-javascript/599a789b454f2bbd91a3ff4d.md

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+---
+id: 599a789b454f2bbd91a3ff4d
+title: Practice comparing different values
+challengeType: 1
+forumTopicId: 301174
+dashedName: practice-comparing-different-values
+---
+
+# --description--
+
+In the last two challenges, we learned about the equality operator (`==`) and the strict equality operator (`===`). Let's do a quick review and practice using these operators some more.
+
+If the values being compared are not of the same type, the equality operator will perform a type conversion, and then evaluate the values. However, the strict equality operator will compare both the data type and value as-is, without converting one type to the other.
+
+**Examples**
+
+`3 == '3'` returns `true` because JavaScript performs type conversion from string to number. `3 === '3'` returns `false` because the types are different and type conversion is not performed.
+
+**Note:** In JavaScript, you can determine the type of a variable or a value with the `typeof` operator, as follows:
+
+```js
+typeof 3
+typeof '3'
+```
+
+`typeof 3` returns the string `number`, and `typeof '3'` returns the string `string`.
+
+# --instructions--
+
+The `compareEquality` function in the editor compares two values using the equality operator. Modify the function so that it returns the string `Equal` only when the values are strictly equal.
+
+# --hints--
+
+`compareEquality(10, "10")` should return the string `Not Equal`
+
+```js
+assert(compareEquality(10, '10') === 'Not Equal');
+```
+
+`compareEquality("20", 20)` should return the string `Not Equal`
+
+```js
+assert(compareEquality('20', 20) === 'Not Equal');
+```
+
+You should use the `===` operator
+
+```js
+assert(__helpers.removeJSComments(code).match(/===/g));
+```
+
+# --seed--
+
+## --seed-contents--
+
+```js
+// Setup
+function compareEquality(a, b) {
+  if (a == b) { // Change this line
+    return "Equal";
+  }
+  return "Not Equal";
+}
+
+compareEquality(10, "10");
+```
+
+# --solutions--
+
+```js
+function compareEquality(a,b) {
+  if (a === b) {
+    return "Equal";
+  }
+  return "Not Equal";
+}
+```