ts-prime/dist/commonjs/indexBy.d.ts

A utility library for JavaScript and Typescript.

import { PredIndexed } from './_types';
/**
 * Converts a list of objects into an object indexing the objects by the given key.
 * @param array the array
 * @param fn the indexing function
 * @signature
 *    P.indexBy(array, fn)
 *    P.indexBy(fn)(array)
 * @example
 *    P.indexBy(['one', 'two', 'three'], x => x.length) // => {3: 'two', 5: 'three'}
 *    P.pipe(
 *      ['one', 'two', 'three'],
 *      P.indexBy(x => x.length)
 *    ) // => {3: 'two', 5: 'three'}
 * @category Array, Pipe
 */
export declare function indexBy<T>(array: readonly T[], fn: (item: T) => any): Record<string, T>;
export declare function indexBy<T>(fn: (item: T) => string | number): (array: readonly T[]) => Record<string, T>;
export declare namespace indexBy {
    function indexed<T, K>(array: readonly T[], fn: PredIndexed<T, any>): Record<string, T>;
    function indexed<T, K>(fn: PredIndexed<T, any>): (array: readonly T[]) => Record<string, T>;
}
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