16 lines
527 B
Markdown
16 lines
527 B
Markdown
### remove
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Removes elements from an array for which the given function returns `false`.
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Use `Array.filter()` to find array elements that return truthy values and `Array.reduce()` to remove elements using `Array.splice()`.
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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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Array.isArray(arr) ? arr.filter(func).reduce((acc, val) => {
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arr.splice(arr.indexOf(val), 1); return acc.concat(val);
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}, [])
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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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