JSFiddle - React, Tailwind, and code Playground

JavaScript

var log = function(x) {
    return function() {
        console.log("An event is triggered:", x);
    };
};

$.ajax({
    url: "/foo",
    success: log("success"),
    error: log("error"),
    complete: log("complete")
})
    .success(log("success"))
    .error(log("error"))
    .complete(log("complete"));