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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 | 8x 8x 8x 2x 2x 8x 1x 1x | import { splitAt } from './splitAt';
import { purry } from './purry';
/**
* Splits a given array at the first index where the given predicate returns true.
* @param array the array to split
* @param fn the predicate
* @signature
* P.splitWhen(array, fn)
* @signature
* P.splitWhen(fn)(array)
* @example
* P.splitWhen([1, 2, 3], x => x === 2) // => [[1], [2, 3]]
* P.splitWhen(x => x === 2)([1, 2, 3]) // => [[1], [2, 3]]
* @category Array, Pipe
*/
export function splitWhen<T>(
array: readonly T[],
fn: (item: T) => boolean
): [T[], T[]];
export function splitWhen<T>(
fn: (item: T) => boolean
): (array: readonly T[]) => [T[], T[]];
export function splitWhen() {
return purry(_splitWhen, arguments);
}
function _splitWhen<T>(array: T[], fn: (item: T) => boolean) {
for (let i = 0; i < array.length; i++) {
if (fn(array[i])) {
return splitAt(array, i);
}
}
return [array, []];
}
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