76 lines
2.1 KiB
Markdown
76 lines
2.1 KiB
Markdown
---
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id: 56533eb9ac21ba0edf2244d1
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title: Comparison with the Strict Equality Operator
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challengeType: 1
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---
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## Description
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<section id='description'>
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Strict equality (<code>===</code>) is the counterpart to the equality operator (<code>==</code>). However, unlike the equality operator, which attempts to convert both values being compared to a common type, the strict equality operator does not perform a type conversion.
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If the values being compared have different types, they are considered unequal, and the strict equality operator will return false.
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<strong>Examples</strong>
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<blockquote>3 === 3 // true<br>3 === '3' // false</blockquote>
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In the second example, <code>3</code> is a <code>Number</code> type and <code>'3'</code> is a <code>String</code> type.
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</section>
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## Instructions
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<section id='instructions'>
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Use the strict equality operator in the <code>if</code> statement so the function will return "Equal" when <code>val</code> is strictly equal to <code>7</code>
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</section>
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## Tests
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<section id='tests'>
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```yml
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- text: <code>testStrict(10)</code> should return "Not Equal"
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testString: 'assert(testStrict(10) === "Not Equal", "<code>testStrict(10)</code> should return "Not Equal"");'
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- text: <code>testStrict(7)</code> should return "Equal"
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testString: 'assert(testStrict(7) === "Equal", "<code>testStrict(7)</code> should return "Equal"");'
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- text: <code>testStrict("7")</code> should return "Not Equal"
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testString: 'assert(testStrict("7") === "Not Equal", "<code>testStrict("7")</code> should return "Not Equal"");'
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- text: You should use the <code>===</code> operator
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testString: 'assert(code.match(/(val\s*===\s*\d+)|(\d+\s*===\s*val)/g).length > 0, "You should use the <code>===</code> operator");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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// Setup
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function testStrict(val) {
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if (val) { // Change this line
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return "Equal";
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}
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return "Not Equal";
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}
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// Change this value to test
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testStrict(10);
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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function testStrict(val) {
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if (val === 7) {
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return "Equal";
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}
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return "Not Equal";
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}
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```
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</section>
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