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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 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | 14x 14x 14x 17x 2x 14x 14x 17x 48x 8x 40x 40x 16x 24x | import { purry } from './purry';
import { _reduceLazy, LazyResult } from './_reduceLazy';
/**
* Returns the first `n` elements of `array`.
* @param array the array
* @param n the number of elements to take
* @signature
* P.take(array, n)
* @signature
* P.take(n)(array)
* @example
* P.take([1, 2, 3, 4, 3, 2, 1], 3) // => [1, 2, 3]
* P.pipe([1, 2, 3, 4, 3, 2, 1], P.take(n)) // => [1, 2, 3]
* @category Array, Pipe
*/
export function take<T>(array: readonly T[], n: number): T[];
export function take<T>(n: number): (array: readonly T[]) => T[];
export function take() {
return purry(_take, arguments, take.lazy);
}
function _take<T>(array: T[], n: number) {
return _reduceLazy(array, take.lazy(n));
}
export namespace take {
export function lazy<T>(n: number) {
return (value: T): LazyResult<T> => {
if (n === 0) {
return {
done: true,
hasNext: false,
};
}
n--;
if (n === 0) {
return {
done: true,
hasNext: true,
next: value,
};
}
return {
done: false,
hasNext: true,
next: value,
};
};
}
}
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