参考链接:https://stackoverflow.com/questions/10650233/checked-checked-vs-checked-true 问: What is the difference between the below two usages? document.getElementById('myRadio').checked = "checked"; and document.getElementById('myRadio').checked = tr
说明:本文来自新浪博客,因为无法收藏,故直接copy过来备注,以后好查询 原网址:http://blog.sina.com.cn/s/blog_6810dfc20101jddq.html 使用jQuery v1.10.2获取checkbox的状态时,用.attr("checked")时输出总是为undefined.郁闷了,这难道是个bug?! 查看jQuery API的文档,发现: As of jQuery 1.6, the .attr() method returns undefin
项目中用的jquery-1.10.2 需要检测一个checkbox的选中状态,想当然的用 .attr("checked") ,结果发现,无论是否选中,这个值都是 undefined 未定义. 查找资料,特此记录: jq官网说明: As of jQuery 1.6, the .attr() method returns undefined for attributes that have not been set. In addition, .attr() should not be u
Three kinds of throwables Throwables Checked Recoverable checked exceptions Y Y runtime exceptions N N errors N N Principle Use checked exceptions for conditions from which the caller can reasonably be expected to recover. Code that parses the string
做一个可编辑的,可checked的treegrid,代码相当简洁: 请看代码: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; ch