jquery is element checkbox code example

Example 1: 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
}

Example 2: check checkbox by jquery

$('.myCheckbox').prop('checked', true);
$('.myCheckbox').prop('checked', false);

Example 3: check checkbox based on value using jquery

$.each(arrayValues, function(i, val){

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

});