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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | 8x 8x 2x 2x 8x 8x 2x 6x 2x | import { purry } from './purry';
/**
* Returns elements from the array until predicate returns false.
* @param array the array
* @param fn the predicate
* @signature
* P.takeWhile(array, fn)
* @signature
* P.takeWhile(fn)(array)
* @example
* P.takeWhile([1, 2, 3, 4, 3, 2, 1], x => x !== 4) // => [1, 2, 3]
* P.pipe([1, 2, 3, 4, 3, 2, 1], P.takeWhile(x => x !== 4)) // => [1, 2, 3]
* @category Array, Pipe
*/
export function takeWhile<T>(
array: readonly T[],
fn: (item: T) => boolean
): T[];
export function takeWhile<T>(
fn: (item: T) => boolean
): (array: readonly T[]) => T[];
export function takeWhile() {
return purry(_takeWhile, arguments);
}
function _takeWhile<T>(array: T[], fn: (item: T) => boolean) {
const ret: T[] = [];
for (const item of array) {
if (!fn(item)) {
break;
}
ret.push(item);
}
return ret;
}
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