Answers for "check if a checkbox is checked in jquery"

How to check whether a checkbox is checked in jQuery?

//using plane javascript 
if(document.getElementById('on_or_off_checkbox').checked) {
    //I am checked
} 

//using jQuery
if($('#on_or_off_checkbox').is(':checked')){
    //I am checked
}

jquery if checkbox checked

$( "SELECTOR" ).attr( "checked" )  // Returns ‘true’ if present on the element, returns undefined if not present
$( "SELECTOR" ).prop( "checked" ) // Returns true if checked, false if unchecked.
$( "SELECTOR" ).is( ":checked" ) // Returns true if checked, false if unchecked.

checkbox is checked jquery

$("#out_of_stock_toggle").click(function(){
      if($(this).is(':checked')){
        //show oos
        $(".oos").fadeIn();
      }else{
        //hide oos
        $(".oos").fadeOut();
      }
    });

check whether a checkbox is checked in jQuery

if ($('#grepperRocks').is(':checked')) {
	// this checkbox is checked
}

jquery check if checkbox is checked

if($('#on_or_off_checkbox').is(':checked')){
    //I am checked
}

javascript how-do-i-check-whether-a-checkbox-is-checked-in-jquery

$("#checkbox").is(':checked')