JSFiddle - React, Tailwind, and code Playground

JavaScript

function checker() {
    	console.log("in checker");
    	$.getJSON("http://djdjdjdjdjinvalidUrl.dkdkdk", function(data) {
        	//handle data here
    	});
    } 

    function crosser(data) {
    	console.log("in crosser");
    }

    $(document).ready(function(){
	    $.when(checker()).done(crosser);
	});