UNPKG

@stdlib/array

Version:
47 lines (39 loc) 1.13 kB
/** * @license Apache-2.0 * * Copyright (c) 2023 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ 'use strict'; /** * Group element values according to an indicator function. * * @module @stdlib/array/base/group-values-by * * @example * var groupValuesBy = require( '@stdlib/array/base/group-values-by' ); * * function indicator( v ) { * return v[ 0 ]; * } * * var x = [ 'beep', 'boop', 'foo', 'bar' ]; * * var out = groupValuesBy( x, indicator ); * // returns { 'b': [ 'beep', 'boop', 'bar' ], 'f': [ 'foo' ] } */ // MODULES // var main = require( './main.js' ); // EXPORTS // module.exports = main;