How to make Select All with single check box in jQuery?

How to make Select All with single check box in jQuery.

$(document).ready(function () {
      $('#selecctall').click(function (event) {  //on click
            if (this.checked) { // check select status
                  $('.check').each(function () { //loop through each checkbox
                        this.checked = true;  //select all checkboxes with class "checkbox1"
                   });
             } else {
                   $('.check').each(function () { //loop through each checkbox
                         this.checked = false; //deselect all checkboxes with class "checkbox1"                    });
             }
       });
});