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35 lines
599 B
JavaScript
35 lines
599 B
JavaScript
5 years ago
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var defer = require('./defer.js');
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// API
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module.exports = async;
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/**
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* Runs provided callback asynchronously
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* even if callback itself is not
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*
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* @param {function} callback - callback to invoke
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* @returns {function} - augmented callback
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*/
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function async(callback)
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{
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var isAsync = false;
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// check if async happened
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defer(function() { isAsync = true; });
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return function async_callback(err, result)
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{
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if (isAsync)
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{
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callback(err, result);
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}
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else
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{
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defer(function nextTick_callback()
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{
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callback(err, result);
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});
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}
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};
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}
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