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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 | 8x 8x 2x 8x 2x 4x 4x 4x | import { Pred } from './_types'; import { purry } from './purry'; /** * Loops each record element and match against provided predicate. * @param record The object to filter. * @param fn Predicate function. * @returns The new filtered record. * @signature * P.filterRecord(record, fn) * @signature * P.pipe({ a: 1, b: 2, c: 3 }, P.filterRecord(fn)) * @example * P.filterRecord({ a: 1, b: 2, c: 3 }, ([k,v]) => [k, v * 2]) // => { a: 2, b: 4, c: 6 } * P.pipe({ a: 1, b: 2, c: 3 }, P.filterRecord(([k,v]) => [k, v * 2]))) // => { a: 2, b: 4, c: 6 } * @category Object, Pipe */ export function filterRecord<T extends Record<string, unknown>>( record: T, fn: Pred<[keyof T, T[keyof T]], any> ): Record<keyof T, T[keyof T]>; export function filterRecord<T extends Record<string, unknown>>( fn: (v: [keyof T, T[keyof T]]) => any ): (record: T) => Record<keyof T, T[keyof T]>; export function filterRecord() { return purry(_filterRecord(), arguments); } const _filterRecord = () => < T extends { [k: string]: any }, K extends string, V >( rec: T, fn: (v: [keyof T, T[keyof T]]) => any ) => { return Object.entries(rec) .filter(fn) .reduce((acc, [k, v]: [keyof T, T[keyof T]]) => { acc[k] = v; return acc; }, {} as Record<keyof T, T[keyof T]>); }; |