how to check checkbox in jquery code example

Example 1: Setting “checked” for a checkbox with jQuery

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

Example 2: 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 3: check a checkbox jquery

$('#grepperRocks').prop('checked', true);

Example 4: check whether a checkbox is checked in jQuery

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

Example 5: how to check the checkbox in jquery

check all checkbox whit button

// Check #x
$( "#x" ).prop( "checked", true );
 
// Uncheck #x
$( "#x" ).prop( "checked", false );


example

      $('.checkAll').click(function () {
                if($(':checkbox').is(':checked')){
                    $(':checkbox').prop( "checked", false );
                }else{
                    $(':checkbox').prop( "checked", true );
                }
            })

Example 6: jquery checkbox

if($("#isAgeSelected").is(':checked'))
    $("#txtAge").show();  // checked
else
    $("#txtAge").hide();  // unchecked