14 lines
442 B
Markdown
14 lines
442 B
Markdown
### takeRightWhile
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Removes elements from the end of an array until the passed function returns `true`. Returns the removed elements.
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Loop through the array, using a `Array.prototype.reduceRight()` and accumulating elements while the function returns falsy value.
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```js
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const takeRightWhile = (arr, func) => arr.reduceRight((acc, el) => func(el) ? acc : [el, ...acc], []);
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```
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```js
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takeRightWhile([1, 2, 3, 4], n => n < 3); // [3, 4]
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```
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