JQUERY提示Cannot read property 'length' of undefined
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if($("#tag dd[navid='"+moduleid+"']").length==0){
}
很简单的一个判断,报错Cannot read property 'length' of undefined ;把项目布置在eclipse里程序运行正常。
在myeclipse里就是各种过不去。
后来发现代码的颜色从这一行开始显示的不正常,去掉以后再加上,竟然没事了,害我找半天错。。。。。
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