76 lines
1.7 KiB
Markdown
76 lines
1.7 KiB
Markdown
---
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title: Happy numbers
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id: 594810f028c0303b75339ad1
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challengeType: 5
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videoUrl: ''
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localeTitle: ''
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---
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## Description
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undefined
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## Instructions
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undefined
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: ''
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testString: 'assert(typeof happy === "function", "<code>happy</code> is a function.");'
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- text: ''
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testString: 'assert(typeof happy(1) === "boolean", "<code>happy(1)</code> should return a boolean.");'
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- text: ''
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testString: 'assert(happy(1), "<code>happy(1)</code> should return true.");'
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- text: ''
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testString: 'assert(!happy(2), "<code>happy(2)</code> should return false.");'
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- text: ''
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testString: 'assert(happy(7), "<code>happy(7)</code> should return true.");'
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- text: ''
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testString: 'assert(happy(10), "<code>happy(10)</code> should return true.");'
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- text: ''
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testString: 'assert(happy(13), "<code>happy(13)</code> should return true.");'
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- text: ''
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testString: 'assert(happy(19), "<code>happy(19)</code> should return true.");'
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- text: ''
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testString: 'assert(happy(23), "<code>happy(23)</code> should return true.");'
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- text: ''
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testString: 'assert(happy(28), "<code>happy(28)</code> should return true.");'
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- text: ''
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testString: 'assert(happy(31), "<code>happy(31)</code> should return true.");'
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- text: ''
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testString: 'assert(happy(32), "<code>happy(32)</code> should return true:.");'
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- text: ''
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testString: 'assert(!happy(33), "<code>happy(33)</code> should return false.");'
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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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function happy (number) {
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// Good luck!
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}
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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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// solution required
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```
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</section>
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