flying-hero
96f6318101
新增: - backend/venv/ - Python 虚拟环境 - backend/start.sh - 启动脚本（使用虚拟环境） - backend/requirements.txt - 依赖列表 - .gitignore - 忽略虚拟环境和缓存文件 说明: - 每个项目使用独立虚拟环境 - 避免依赖冲突 - 启动脚本自动创建和激活虚拟环境
35 lines
599 B
JavaScript
35 lines
599 B
JavaScript
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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