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Skills of jQuery Operating radio in input

  • 2021-07-04 17:41:26
  • OfStack

Get all radio objects in the page through jQuery, traverse radio in the page, and cancel the selected label. Because it takes jQuery time, it references js, which is public on the Internet. This is just my summary. Don't spray it. 


<html>
<head>
<title> Cancel </title>
<script language="javascript">
function _onclick() {
$("input[name='ra']:checked").val();
var radios = document.getElementsByName("ra");
for (i = 0; i < radios.length; i++) {
if (radios[i].checked) {
radios[i].checked=false;
break;
}
}
}
function _onclick1() {
var item = $("input:radio[name='ra'][checked]").val(); 
alert(item)
var radios = $("input[name='ra']");
for (i = 0; i < radios.length; i++) {
if (radios[i].checked) {
radios[i].checked=false;
break;
}
}
}
function _onclick2() {
var radios = $("input[type='radio']");
for (i = 0; i < radios.length; i++) {
if (radios[i].checked) {
radios[i].checked=false;
}
}
}
</script>
</head>
<body>
<div><ol>
<li><input type="radio" name="ra" value="1">1</li>
<li><input type="radio" name="ra" value="2">2</li>
<li><input type="radio" name="ra" value="3" checked>3</li>
<li><input type="radio" name="ra" value="4">4</li>
<li><input type="radio" name="ra" value="5">5</li>
<li><input type="radio" name="ra" value="6">6</li>
<li><input type="radio" name="ra" value="7">7</li>
<li><input type="radio" name="ra" value="8">8</li> 
</ol></div>
<div><ol>
<li><input type="radio" name="ra1" value="1">1</li>
<li><input type="radio" name="ra1" value="2">2</li>
<li><input type="radio" name="ra1" value="3" checked>3</li>
<li><input type="radio" name="ra1" value="4">4</li>
<li><input type="radio" name="ra1" value="5">5</li>
<li><input type="radio" name="ra1" value="6">6</li>
<li><input type="radio" name="ra1" value="7">7</li>
<li><input type="radio" name="ra1" value="8">8</li> 
</ol></div>
<input type="button" value="GetValue1" onclick="_onclick()" />
<input type="button" value="GetValue2" onclick="_onclick1()" />
<input type="button" value="GetValue3" onclick="_onclick2()" />
<script src="http://apps.bdimg.com/libs/jquery/1.6.4/jquery.js" type="text/javascript"></script>
</body>
</html>

In this paper, the method of obtaining radio objects in 3 is used, the first two are used more, and the third method directly obtains objects through type tags, which may obtain all radio objects in the page, so it is not recommended.

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