JQuery sample code that determines if radio is selected and gets the selected value

  • 2020-03-30 04:08:38
  • OfStack

Other functions to operate on radio will be added later. Go straight to the code and don't forget to reference the JQuery package

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JQuery radio</title>
<script type="text/javascript" language="javascript" src="JavaScript/jquery-1.6.1.min.js" ></script>
<script type="text/javascript" language="javascript">

var val=$('input:radio[name="sex"]:checked').val();
alert(" Nothing selected !");
return false;
var list= $('input:radio[name="list"]:checked').val();
alert(" Please select one !");
return false;

<form id="form1" >
<input type="radio" name="sex" value=" male " /> male 
<input type="radio" name="sex" value=" female " /> female 
<br />
<input type="radio" name="list" value=" Very satisfied with " /> Very satisfied with 
<input type="radio" name="list" value=" Satisfied with the " /> Satisfied with the 
<input type="radio" name="list" value=" Not satisfied with " /> Not satisfied with 
<input type="radio" name="list" value=" Very poor " /> Very poor 
<br />
<input type="submit" value="submit" id="btnSubmit" />

The net friend comment on: var boolCheck = $(' input: radio [name = "sex"] "), is (" : checked "); It's better. It's simpler

Is () detects a collection of matching elements based on a selector, element, or jQuery object, and returns true if at least one of those elements matches a given parameter.

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