关于js执行顺序解决思路

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Release: 2016-06-13 10:03:15
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关于js执行顺序
代码:,点击按钮,会执行js中的方法a()和b(),现在想让方法b()等待方法a()执行完再执行,该如何实现 。 (方法a()其实是ajax调用的方法,方法b()执行需要方法a()的返回值)

------解决方案--------------------
把b()放在a()的if(xmlHttp.status == 200)里面。
------解决方案--------------------
把b()函数放a()函数最后面就行!

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