原文:Cannot read property 'defaultView' of undefined js操作异常

在function obj 函数中操作对象时,突然遇到 Cannot read property defaultView of undefined js报错 打印出obj即可发现问题,在js函数传参时 this 传递的是父类的jquary对象,this传递的是父类HTML对象。当this包含在B函数对象中调用时,需要在调用B之前把this复制一份var thisObj this。 ...

2016-12-02 13:18 0 6307 推荐指数:

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js报错Cannot read property 'length' of undefined

网上找到的答案:js报错Cannot read property 'length' of undefined时一般是传入的参数是undefined 我原来的代码是 由于txtKldgAnswer被替换成CKEDITOR.replace('txtKldgAnswer ...

Wed Jun 24 00:24:00 CST 2020 0 5412
Cannot read property 'apply' of undefined

...TypeError: Cannot read property 'apply' of undefined :一般都是作用域不对 ...TypeError: Cannot read property 'Anything' of undefined :一般都是变量未传入 ...

Fri Apr 17 07:04:00 CST 2015 0 3134
 
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