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30-seconds-of-code/snippets/reject.md
2018-04-27 07:57:19 -04:00

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### reject
Takes a predicate and array, like `Array.filter()`, but only keeps `x` if `pred(x) === false`.
```js
const reject = (pred, array) => array.filter((...args) => !pred(...args));
```
```js
reject(x => x % 2 === 0, [1, 2, 3, 4, 5]); // [1, 3, 5]
reject(word => word.length > 4, ['Apple', 'Pear', 'Kiwi', 'Banana']); // ['Pear', 'Kiwi']
```