20 lines
518 B
Markdown
20 lines
518 B
Markdown
---
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title: Check if array includes all values
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tags: array,beginner
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firstSeen: 2019-11-04T21:37:16+02:00
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lastUpdated: 2020-10-20T23:02:01+03:00
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---
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Checks if all the elements in `values` are included in `arr`.
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- Use `Array.prototype.every()` and `Array.prototype.includes()` to check if all elements of `values` are included in `arr`.
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```js
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const includesAll = (arr, values) => values.every(v => arr.includes(v));
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```
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```js
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includesAll([1, 2, 3, 4], [1, 4]); // true
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includesAll([1, 2, 3, 4], [1, 5]); // false
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```
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