Press n or j to go to the next uncovered block, b, p or k for the previous block.
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 54 55 56 57 58 59 60 | 8x 8x 2x 8x 2x 2x 2x 16x 16x 4x 4x 4x 12x 12x 2x | import { purry } from './purry'; import { Pred } from './_types'; import { _toLazyIndexed } from './_toLazyIndexed'; /** * Filter the elements of an array that meet the condition specified in a callback function. * @param array The array to filter. * @param fn the callback function. * @signature * P.filter(array, fn) * @signature * P.filter(fn)(array) * @example * P.filter([1, 2, 3], x => x % 2 === 1) // => [1, 3] * * P.pipe([1, 2, 3], P.filter(x => x % 2 === 1)) // => [1, 3] * @category Array, Pipe */ export function partition<T, S extends T>( array: readonly T[], fn: (value: T) => value is S ): [S[], Exclude<T, S>[]]; export function partition<T>(array: readonly T[], fn: Pred<T, boolean>): T[]; export function partition<T, S extends T>( fn: (input: T) => input is S ): (array: readonly T[]) => [S[], Exclude<T, S>[]]; export function partition<T>(fn: Pred<T, boolean>): (array: readonly T[]) => [T[], T[]]; export function partition() { return purry(_partition(), arguments); } export type PredIndexed<T, K> = ( input: T, index: number, array: readonly T[] ) => K; const _partition = () => <T>( array: T[], fn: ( input: T, index: number, array: readonly T[] ) => any ) => { let right = [] let left = [] let index = 0 for (const s of array) { if (fn(s, index, array)) { index++ right.push(s) continue } index++ left.push(s) } return [right, left] }; |