Testing if a checkbox is checked with jQuery

javascript jquery checkbox jquery-selectors
Rajeev picture Rajeev · Jan 27, 2011 · Viewed 752.9k times · Source

If the checkbox is checked, then I only need to get the value as 1; otherwise, I need to get it as 0. How do I do this using jQuery?

$("#ans").val() will always give me one right in this case:

<input type="checkbox" id="ans" value="1" />

Answer

Andy Mikula picture Andy Mikula · Jan 27, 2011

Use .is(':checked') to determine whether or not it's checked, and then set your value accordingly.

More information here.

Related questions

How do I check whether a checkbox is checked in jQuery?

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 …

Read More
Setting "checked" for a checkbox with jQuery

I'd like to do something like this to tick a checkbox using jQuery: $(".myCheckBox").checked(true); or $(".myCheckBox").selected(true); Does such a thing exist?

Read More
Check if checkbox is checked with jQuery

How can I check if a checkbox in a checkbox array is checked using the id of the checkbox array? I am using the following code, but it always returns the count of checked checkboxes regardless of id. function isCheckedById(…

Read More