当前位置:编程学习 > JS >>

Extjs4---常见错误集合

1、Uncaught TypeError: Cannot read property ‘dom’ of null
原因:如果代码段没有放入Ext.onReady中
2、Uncaught
 TypeError: Cannot call method 'hasOwnProperty' of undefined
参考这篇文章:Extjs4---Uncaught
 TypeError: Cannot call method 'hasOwnProperty' of undefined
3、Cannot
 read property 'addCls' of null
参考文章:Extjs4---Cannot
 read property 'addCls' of null


4、Uncaught
 TypeError: Cannot call method 'substring' of undefined
参考文章:Extjs4---Uncaught
 TypeError: Cannot call method 'substring' of undefined

补充:web前端 , JavaScript ,
CopyRight © 2022 站长资源库 编程知识问答 zzzyk.com All Rights Reserved
部分文章来自网络,