JSFiddle - React, Tailwind, and code Playground

HTML

<div id="ConsoleDiv"></div>

JavaScript

function funcA(){
    $("#ConsoleDiv").append("<p>funcA</p>");
}
function funcB(){
    $("#ConsoleDiv").append("<p>funcB</p>");
}
var funcArr = [$.Deferred(funcA), $.Deferred(funcB)];

$.when(funcArr).then(function(){
    $("#ConsoleDiv").append("<p>DONE!</p>");
});