getElementByName()方法返回所有名称为radio的单选元素。之后,我们使用for-of循环来遍历单选按钮的数组,并使用’checked’属性检查每个单选按钮是否被选中。<html> <body> <h3>Using the <i>checked property</i> of the radio button to check whether a radio button is selected</h3> <input type = "radio...
<button onclick="checkRadioButton()">Check Status</button> <script> function checkRadioButton() { var option1 = document.getElementById("option1"); var option2 = document.getElementById("option2"); var option3 = document.getElementById("option3"); if (option1.checked) { console.log(...
Javascript to display text if a radio button is checked I have a form that has 4 groups of radio buttons with the values Yes and No. This is how I have it s... Updated Jun 26, 2022 • Acrobat Discussions Checkbox Mouse-up to reset radio buttons Hello again eve...
//a variable that will hold the index number of the selected radio buttonvartheOne;for(vari=0;i<document.tv.station; i++){if(document.tv.station[i].checked ===true){ theOne=i;break;//exist for loop, as target acquired} } 2)在<input>标签内使用onClikc来获取被选中的选择框 <script t...
//This required to uncheck them later. //We need to store status separately as browser updates checked status before click handler called, //so radio button will always be checked. var isChecked; return function(event) { //console.log(event.type + ": " + this.checked); if(event.type...
/t5/acrobat-sdk-discussions/changing-radio-button-value-javascript/td-p/11029754 Apr 06, 2020 Apr 06, 2020 Copy link to clipboard Copied Hello there,Is there a way to change the value of a Radio button with some kind of JavaScript "If function"? The dropdown box /pixelamount/ has 3 ...
Visual checked state only updated on click If the checked state of a checkbox button is updated without firing a click event on the button (e.g. via <input type="reset"> or via setting the checked property of the input), you will need to toggle the .active class on the input's labe...
querySelector("#check").addEventListener("change", function (event) { 23 // Enable or disable the button when it is checked or unchecked 24 if (event.target.checked) { 25 actions.enable(); 26 } else { 27 actions.disable(); 28 } 29 }); 30 }, 31 32 // onClick is called ...
ASP.Net FileUpload: Rename file name before saving if already exists asp.net gridview how to set click event for built in edit,delete,update, cancel button Asp.Net Identity unique email check during register new account ASP.NET Iframe Equivalent ASP.Net JavaScript 2-button (OK/Cancel) "msgbo...
4.表单提交(空格提交的问题)例 4.1(form.submitIEFF.html) <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <script language=javascript> function check() { var form = document.getElementById("regForm"); if (form.user.value == "") { alert("用户名不能为空...