The HTML checkbox element, which is basically an input with type="checkbox", can contain an inline attribute to determine if the checkbox will appear checked on page load or not.<!-- Checked on page load --> <input type="checkbox" name="test" id="el" checked> <!-- Unchecked on pag...
方法一(建议):if($("#checkbox-id").get(0).checked){// do something}感谢豆瓣绿补充:if($("#checkbox-id")[0].checked){// do something}方法二(建议):if($('#checkbox-id').is(':checked')){// do something}方法三(可能无效):if($('#checkbox-id').attr('checked')){// do something...
判断checkbox是否被选中 :checked 选择器选取所有选中的复选框或单选按钮。 <!DOCTYPEHTMLPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"><html><head><metahttp-equiv="Content-Type"content="text/html;charset=utf-8"><title></title><scripttype="application...
$('.myCheckbox').prop('checked',true); $('.myCheckbox').prop('checked',false); 参考如下帖子:http://stackoverflow.com/questions/426258/checking-a-checkbox-with-jquery 修改代码,修改后调试正常通过 if($("#ZYAreaBC").val() !=null) {if($("#ZYAreaBC").val() != "") { $("#ChkSY...
if ($check.is(":checked") == false) { $("input[type='checkbox'][checked]").each(function () { //遍历被选中CheckBox元素的集合,将所有被选中的input的value值暂时变成默认值“current” this.value = "current"; }); $("#eqplist tr.item_list_table_con").each(function () { ...
functiontoggleCheckbox(isChecked){ if(isChecked){ $('input[name="user"]').each(function(){ this.checked=true; }); }else{ $('input[name="user"]').each(function(){ this.checked=false; }); } } </script> Output: Check DEMO
A jQuery function that will check all checkboxes in a specific form on form submit and give an alert if no checkboxes are selected.
点击input checkbox复选框时,如何用jQuery实时获取其选中状态? 代码语言:javascript 代码运行次数:0 运行 AI代码解释 function checkAll(id) { //用is判断 // let checkStatus=$(id).is(':checked'); // console.log(checkStatus) //用prop方法(用attr获取不到) let checkStatus=$(id).prop("checked"); ...
注意:在 messages_cn.js 文件中添加:isZipCode: "只能包括中文字、英文字母、数字和下划线"。调用前要添加对 additional-methods.js 文件的引用。10、radio 和 checkbox、select 的验证radio 的 required 表示必须选中一个。<input type="radio" id="gender_male" value="m" name="gender" required /> <input...
If you're updating to a newer version of jQuery, be sure to read the release notes published on our blog. If you're coming from a version prior 1.9, you should check out the 1.9 Upgrade Guide as well.Note that this is the API documentation for jQuery core. Other projects have API ...