jquery - Set selected radio from radio group with a value

Question

Why am I struggling with this?

I have a value: 5

How do I check the radio button of group "mygroup" with the value of 5?

$("input[name=mygroup]").val(5); // doesn't work?

Answer 1

With the help of the attribute selector you can select the input element with the corresponding value. Then you have to set the attribute explicitly, using .attr:

var value = 5;
$("input[name=mygroup][value=" + value + "]").attr('checked', 'checked');

Since jQuery 1.6, you can also use the .prop method with a boolean value (this should be the preferred method):

$("input[name=mygroup][value=" + value + "]").prop('checked', true);

Remember you first need to remove checked attribute from any of radio buttons under one radio buttons group only then you will be able to add checked property / attribute to one of the radio button in that radio buttons group.

Code To Remove Checked Attribute from all radio buttons of one radio button group -

$('[name="radioSelectionName"]').removeAttr('checked');