js: if (document.getElementById("checkboxID").checked) { alert("checkobx is checked");} jquery: if ($("#checkboxID").prop("checked")) { alert("checkbox is checked"); } 或 if ($("#checkboxID").is(
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>html+css+js实现复选框全选与反选</title> <meta http-equiv="content-type" conten
最近项目中需要用jquery判断input里checkbox是否被选中,发现用attr()获取不到复选框改变后的状态,最后查资料发现jQuery 1.6以后新增加了prop()方法,借用官方的一段描述就是: The difference between attributes and properties can be important in specific situations. Before jQuery 1.6, the .attr() method sometimes took pro
这是界面代码: function shua(){ var id_array=new Array(); $('input[id="checkAll"]:checked').each(function(){ id_array.push($(this).val());//向数组中添加元素 }); //获取界面复选框的所有值 var chapterstr = id_array.join(',