13 lines
466 B
Markdown
13 lines
466 B
Markdown
### Remove
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Remove elements from `arr` that are returns truthy. Use `Array.filter()` to finding the matching elements and `Array.reduce()` to remove elements using `Array.splice()`.The `func` is invoked with three arguments: (value, index, array).
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```js
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const remove = (arr, func) =>
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arr.filter(func).reduce((acc, val) => {
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arr.splice(arr.indexOf(val), 1)
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return acc.concat(val);
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}, [])
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//remove([1, 2, 3, 4], n => n % 2 == 0) -> [2, 4]
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```
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