checkbox is checked in jquery 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: jquery checkbox checked

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

Example 3: How do I check whether a checkbox is checked in jQuery?

$('#' + id).is(":checked")

Example 4: check whether a checkbox is checked in jQuery

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

Example 5: jquery is checked

if ($('[name="your_input_checkbox_name"]').is(":checked"))
{
  // it is checked
} else {
  // it isn't checked	
}

Example 6: javascript how-do-i-check-whether-a-checkbox-is-checked-in-jquery

document.getElementById('checkbox').checked;