18 lines
390 B
Markdown
18 lines
390 B
Markdown
---
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title: sample
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tags: array,random,beginner
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---
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Returns a random element from an array.
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- Use `Math.random()` to generate a random number, multiply it by `length` and round it off to the nearest whole number using `Math.floor()`.
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- This method also works with strings.
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```js
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const sample = arr => arr[Math.floor(Math.random() * arr.length)];
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```
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```js
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sample([3, 7, 9, 11]); // 9
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```
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