get radio button value

add_action( 'wp_head', function () { ?>
	<script>

	jQuery(document).ready(function() {
		var resident_input = jQuery('input[name="wa_resident_yes_no"]')
		resident_input.change(function(){
			var checked = resident_input.filter(':checked');
			var checked_val = checked.val();
			console.log(checked_val) ;
			jQuery.ajax({
				type: 'post',
				url: '' ,
				data: {resident : checked_val},
				success: function(data){
					console.log("success!");
					//console.log(data);
				}
			});
		}) ;

	});


	</script>
<?php });