@woosh/meep-engine/src/core/collection/array/array_group_by.d.ts

Pure JavaScript game engine. Fully featured and production ready.

/**
 * @template T,K
 * @param {T[]} array
 * @param {function(T):K} grouping_key_producer given an element from input array, returns a grouping key. Can be an object, if it implements .equals method keys can be compared that way as well
 * @param keyHashFunction
 * @returns {Map<K,T[]>}
 */
export function array_group_by<T, K>(array: T[], grouping_key_producer: (arg0: T) => K, keyHashFunction?: typeof returnZero): Map<K, T[]>;
import { returnZero } from "../../function/returnZero.js";
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