Jquery if checkbox is checked add a class

Question

I am trying to add a class when a checkbox is checked.

My jquery:

$('input').attr("checked").change(function(){
$('div.menuitem').addClass("menuitemshow");
})

user_7156852 · Answer

$('input:checkbox').change(function(){
    $('div.menuitem').toggleClass('menuitemshow', this.checked);
})