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[node] 浅谈node异步编程 #9

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zhangjin-007 opened this issue Apr 18, 2018 · 1 comment

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zhangjin-007 commented Apr 18, 2018 •

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异步编程的痛点

还记得刚开始写前端的时候，如果我们按照顺序执行，牺牲代码质量，比如模块化，代码可重用，还有可维护，下面列举一个例子，这个例子看完之后有种似曾相似的感觉

这个问题叫做callback hell

callback discipline

有哪些规约可以减少上面的痛点呢

你需要及时退出程序使用 return continue break ,而不是使用if/else
命名callback函数成外面的clousure,传递参数给callback,
命名好我们的函数会对栈追踪起到更好的效果（stack trace）
我们需要模块化我们的代码，使其可用，切分更小
重构后的代码

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zhangjin-007 commented Apr 18, 2018

未完待续，太懒了，先截图凑合吧

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