Connected script in wordpress doesn't see $ variable of built-in wp jquery script?

Question

JavaScript

Why, when I register and include my common script prfx-common.js and write in qjuery, does it not see the $ variable?

Answer 1

( function( $ ) {
//Тут ваш код с $
  $(body).on('click', function(){
       alert('Hello');
  })
// конец кода
})(jQuery);