JSFiddle - React, Tailwind, and code Playground

JavaScript

// Show work and return status code 200:
$.ajax({ 
    url: "/echo/json/", 
    success: function() {
        alert("Local Success!!");
    },
    error: function() {
        alert("Local Error!!");  
    } 
});

// Should fail with status code 404:
$.ajax({ 
    url: "...../echo/json/", 
    success: function() {
        alert("Local Success!!");
    },
    error: function() {
        alert("Local Error!!");  
    }  
});

$.ajaxSetup({
    ajaxsuccess: function (result, status, xhr) {
        alert(result);
        }
    },
    ajaxcomplete: function (result, status, xhr) {
        alert(result);
        }
    }
});