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@stdlib/utils

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Standard utilities.

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/** * @license Apache-2.0 * * Copyright (c) 2018 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'; /** * Apply a function against an accumulator and each element in an array and return the accumulated result. * * @module @stdlib/utils/reduce * * @example * var reduce = require( '@stdlib/utils/reduce' ); * * function sum( acc, value ) { * return acc + value; * } * * var arr = [ 1, 2, 3, 4 ]; * * var out = reduce( arr, 0, sum ); * // returns 10 * * @example * var naryFunction = require( '@stdlib/utils/nary-function' ); * var add = require( '@stdlib/math/base/ops/add' ); * var array = require( '@stdlib/ndarray/array' ); * var reduce = require( '@stdlib/utils/reduce' ); * * var opts = { * 'dtype': 'generic' * }; * var arr = array( [ [ 1, 2, 3 ], [ 4, 5, 6 ] ], opts ); * * var out = reduce( arr, 0, naryFunction( add, 2 ) ); * // returns 21 */ // MODULES // var main = require( './main.js' ); // EXPORTS // module.exports = main;