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