}// set the radio button with the given value as being checked// do nothing if there are no radio buttons// if the given value does not exist, all the radio buttons// are reset to uncheckedfunction setCheckedVa
(radioObj.checked) return radioObj.value; else return ""; for(var i = 0; i < radioLength; i++) { if(radioObj[i].checked) { return radioObj[i].value; } } return ""; } // set the radio button with the given value as being checked // do nothing if there are no radio ...
This pair of Javascript function can get or set the checked value of a group of radio buttons. These functions are specially designed for dynamic pages, and work without error with zero, one, or more radio buttons. Also, because the radio length is saved before looping, this function is mu...
// 通过设置checked属性来更改默认选择选项 document.getElementById("radioButtonId").checked = true; 对于复选框(checkboxes): 代码语言:javascript 复制 // 通过设置checked属性来更改默认选择选项 document.getElementById("checkboxId").checked = true; 对于下拉菜单(select): 代码语言:javascript 复制 // 通过...
想要兼容IE/Firefox动态创建radio button元素可以这样写: functioncreateRadio(name,id,value,isChecked) { varoRadio=null; if(isIE) { oRadio=document.createElement("<input name='"+name+(isChecked?"' checked='"+isChecked+"'/>":"' />")); ...
单选框(Radio Button)是网页表单中常用的一种选择控件,它允许用户从一组选项中选择一个。添加和管理单选框按钮在创建互动网页时非常重要。本篇文章将向您展示如何使用 JavaScript 创建单选框按钮,同时也将提供代码示例以供参考。 单选框的基本概念 在HTML 中,单选框通过<input>元素来实现,并设置属性type为radio。相同...
在上面的代码中,'radioButtonId'是单选按钮的ID,eventHandler是一个函数,它将在单选按钮状态更改时被调用。 接下来,定义一个事件处理函数,该函数将在单选按钮状态更改时执行所需的操作。 代码语言:txt 复制 function eventHandler() { if (this.checked) { // 单选按钮被选中时执行的操作 } else { // ...
input name="radiobutton" type="radio" value="radiobutton" checked 只要 写 checked 就被选中了默认的 if
The JavaScript Radio Button is used to select a single option from the logically grouped options set.Forms support The JavaScript Radio Button seamlessly supports HTML forms, template-driven forms (Angular), and reactive forms.Built-in themes The HTML5/JavaScript Radio button supports built-in theme...
Set data-toggle="modal" on a controller element, like a button, along with a data-target="#foo" or href="#foo" to target a specific modal to toggle. <button type="button" data-toggle="modal" data-target="#myModal">Launch modal</button> Via JavaScript Call a modal with id myModal...