63 lines
1.4 KiB
Markdown
63 lines
1.4 KiB
Markdown
---
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id: 9d7123c8c441eeafaeb5bdef
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title: Remove Elements from an Array Using slice Instead of splice
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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(code.match(/\.slice/g), "Your code should use the <code>slice</code> method.");'
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- text: ''
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testString: 'assert(!code.match(/\.splice/g), "Your code should not use the <code>splice</code> method.");'
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- text: ''
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testString: 'assert(JSON.stringify(inputCities) === JSON.stringify(["Chicago", "Delhi", "Islamabad", "London", "Berlin"]), "The <code>inputCities</code> array should not change.");'
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- text: ''
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testString: 'assert(JSON.stringify(nonMutatingSplice(["Chicago", "Delhi", "Islamabad", "London", "Berlin"])) === JSON.stringify(["Chicago", "Delhi", "Islamabad"]), "<code>nonMutatingSplice(["Chicago", "Delhi", "Islamabad", "London", "Berlin"])</code> should return <code>["Chicago", "Delhi", "Islamabad"]</code>.");'
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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 nonMutatingSplice(cities) {
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// Add your code below this line
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return cities.splice(3);
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// Add your code above this line
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}
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var inputCities = ["Chicago", "Delhi", "Islamabad", "London", "Berlin"];
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nonMutatingSplice(inputCities);
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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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