65 lines
1.5 KiB
JavaScript
65 lines
1.5 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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* If a function does not return an error, invoke a callback with the function result; otherwise, invoke a second function `y`.
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*
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* @module @stdlib/utils/async/try-then
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*
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* @example
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* var randu = require( '@stdlib/random/base/randu' );
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* var trythenAsync = require( '@stdlib/utils/async/try-then' );
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*
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* function x( clbk ) {
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* setTimeout( onTimeout, 0 );
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* function onTimeout() {
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* if ( randu() > 0.5 ) {
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* return clbk( null, 1.0 );
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* }
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* clbk( new Error( 'beep' ) );
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* }
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* }
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*
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* function y( clbk ) {
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* setTimeout( onTimeout, 0 );
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* function onTimeout() {
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* clbk( null, -1.0 );
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* }
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* }
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*
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* function done( error, result ) {
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* if ( error ) {
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* throw error;
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* }
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* console.log( result );
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* }
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*
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* trythenAsync( x, y, done );
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*/
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// MODULES //
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var trythenAsync = require( './try_then_async.js' );
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// EXPORTS //
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module.exports = trythenAsync;
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