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异步编程引发的callback hell 问题采用Promise / A编程模式解决更合理 #2

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hh54188 opened this issue Aug 23, 2014 · 1 comment

hh54188 commented Aug 23, 2014

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zhangziqiu commented Aug 25, 2014

值得探索. 我认为promise和event事件机制不再一个层次上. promise是接口层面的, 而event是更底层的支持.

promise模式导致内部流程控制变得复杂, 内部代码不宜维护
promise是一个很重的模式, 缺乏灵活性. 在一些场景下会导致较严重的代码污染. 即会将逻辑代码和为了实现promise模式的代码混在在一起.
实现promise模式, 可以使用event类提供的事件机制. 避免闭包, 这块后续可以探索看看.

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