21 lines
505 B
Markdown
21 lines
505 B
Markdown
---
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title: Check if array includes all values
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type: snippet
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tags: [array]
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cover: tomatoes
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dateModified: 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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