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How to determine whether a checkbox is selected in jquery
- 青灯夜游Original
- 2021-11-25 18:21:0110121browse
Judgment method: 1. Use the "$(checkbox element).prop('checked')" statement. If true is returned, it is selected, if false is returned, it is not selected; 2. Use "$(checkbox element) Box element).is(':checked')" statement, if true is returned, it is checked, if false is returned, it is not checked.
The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.
jquery determines whether the check box is checked
Method 1: Use prop('checked')
If true is returned, it is selected, if false is returned, it is not selected
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
var isChecked = $('#cbx').prop('checked');
alert(isChecked);
});
});
</script>
</head>
<body>
<input type="checkbox" id="cbx" /><label for="cbx">点我</label><br /><br />
<button>判断复选框是否被选中</button>
</body>
</html>
Method 2: Use is(': checked')
If true is returned, it is checked, if false is returned, it is not checked
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
var isChecked = $('#cbx').is(':checked');
alert(isChecked);
});
});
</script>
</head>
<body>
<input type="checkbox" id="cbx" /><label for="cbx">点我</label><br /><br />
<button>判断复选框是否被选中</button>
</body>
</html>
Related video tutorial recommendations: jQuery Tutorial(Video)
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