Basic Jquery AJAX

jqueryAjax.js

$.ajax({
      type: "POST",
      url: 'url.php',
      data: {
         "key1": value1,
         "key2": value2
          },
      success: function (data) {
          return data;
        },
      error: function (jqXHR, exception) {
          console.log(jqXHR);
           }
    });