JSFiddle - React, Tailwind, and code Playground

JavaScript

$.when(
    $.getScript( "/mypath/myscript1.js" ),
    $.getScript( "/mypath/myscript2.js" ),
    $.getScript( "/mypath/myscript3.js" ),
    $.Deferred(function( deferred ){
        $( deferred.resolve );
    })
).done(function(){
    
    //place your code here, the scripts are all loaded
    //You'll get an error in the console since the script files does'nt exists, but that shows that the browser tried loading them
    
});