Check checkbox checked property
I need to check the checked property of a checkbox and perform an action based on the checked property using jQuery.
For example, if the age checkbox is checked, then I need to show a textbox to enter age, else hide the textbox.
But the following code returns false by default:
if($('#isAgeSelected').attr('checked')) {
$("#txtAge").show();
} else {
$("#txtAge").hide();
}
How do I successfully query the checked property?
Javascript
jQuery
- asked 9 years ago
- B Butts
2Answer
How do I successfully query the checked property?
The checked property of a checkbox DOM element will give you the checked state of the element.
Given your existing code, you could therefore do this:
if(document.getElementById('isAgeSelected').checked) {
$("#txtAge").show();
} else {
$("#txtAge").hide();
}
However, there's a much prettier way to do this, using toggle:
$('#isAgeSelected').click(function() {
$("#txtAge").toggle(this.checked);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="checkbox" id="isAgeSelected"/>
<div id="txtAge" style="display:none">Age is something</div>
- answered 8 years ago
- G John
Use jQuery's is() function:
if($("#isAgeSelected").is(':checked'))
$("#txtAge").show(); // checked
else
$("#txtAge").hide(); // unchecked
- answered 8 years ago
- Sunny Solu
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