87 lines
2.2 KiB
Markdown
87 lines
2.2 KiB
Markdown
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---
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id: 56533eb9ac21ba0edf2244cb
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title: Manipulating Complex Objects
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challengeType: 1
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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(Array.isArray(myMusic), "<code>myMusic</code> should be an array");'
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- text: ''
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testString: 'assert(myMusic.length > 1, "<code>myMusic</code> should have at least two elements");'
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- text: ''
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testString: 'assert(typeof myMusic[1] === "object", "<code>myMusic[1]</code> should be an object");'
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- text: ''
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testString: 'assert(Object.keys(myMusic[1]).length > 3, "<code>myMusic[1]</code> should have at least 4 properties");'
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- text: ''
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testString: 'assert(myMusic[1].hasOwnProperty("artist") && typeof myMusic[1].artist === "string", "<code>myMusic[1]</code> should contain an <code>artist</code> property which is a string");'
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- text: ''
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testString: 'assert(myMusic[1].hasOwnProperty("title") && typeof myMusic[1].title === "string", "<code>myMusic[1]</code> should contain a <code>title</code> property which is a string");'
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- text: ''
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testString: 'assert(myMusic[1].hasOwnProperty("release_year") && typeof myMusic[1].release_year === "number", "<code>myMusic[1]</code> should contain a <code>release_year</code> property which is a number");'
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- text: ''
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testString: 'assert(myMusic[1].hasOwnProperty("formats") && Array.isArray(myMusic[1].formats), "<code>myMusic[1]</code> should contain a <code>formats</code> property which is an array");'
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- text: ''
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testString: 'assert(myMusic[1].formats.every(function(item) { return (typeof item === "string")}) && myMusic[1].formats.length > 1, "<code>formats</code> should be an array of strings with at least two elements");'
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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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var myMusic = [
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{
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"artist": "Billy Joel",
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"title": "Piano Man",
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"release_year": 1973,
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"formats": [
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"CD",
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"8T",
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"LP"
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],
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"gold": true
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}
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// Add record here
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];
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```
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</div>
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### After Test
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<div id='js-teardown'>
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```js
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console.info('after the test');
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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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