78 lines
1.7 KiB
JavaScript
78 lines
1.7 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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/**
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* Apply a function against an accumulator and each element in a collection and return the accumulated result.
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*
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* @module @stdlib/utils/async/reduce
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*
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* @example
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* var readFile = require( '@stdlib/fs/read-file' );
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* var reduceAsync = require( '@stdlib/utils/async/reduce' );
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*
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* var files = [
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* './beep.js',
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* './boop.js'
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* ];
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*
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* function done( error, acc ) {
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* if ( error ) {
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* throw error;
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* }
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* console.log( acc.count );
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* }
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*
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* function read( acc, file, next ) {
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* var opts = {
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* 'encoding': 'utf8'
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* };
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* readFile( file, opts, onFile );
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*
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* function onFile( error ) {
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* if ( error ) {
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* return next( null, acc );
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* }
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* acc.count += 1;
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* next( null, acc );
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* }
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* }
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*
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* var acc = {
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* 'count': 0
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* };
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* reduceAsync( files, acc, read, done );
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*/
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// MODULES //
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var setReadOnly = require( './../../../define-nonenumerable-read-only-property' );
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var reduceAsync = require( './reduce.js' );
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var factory = require( './factory.js' );
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// MAIN //
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setReadOnly( reduceAsync, 'factory', factory );
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// EXPORTS //
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module.exports = reduceAsync;
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