check value of checkbox 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 value

if ($('#check_id').is(":checked"))
{
  // it is checked
}

Example 3: get value of all checked boxes jquery

var values = $('input[name=grepperRocks]:checked')
               .map(() => { return this.value }).get();

Example 4: check checkbox by jquery

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

Example 5: get the value of a checkbox jquery

$("input[type='checkbox']").val();
$('#check_id').val();