JSFiddle - React, Tailwind, and code Playground

JavaScript

function data(cb) {

   getData(cb);  
   
}

function printData(data) {

    console.log("printing " + data)   
}

function getData (cb) {

    console.log("getting data");

    setTimeout(function(){
        console.log("finishing data");
        cb("this is the data");
        //return "this is the data"
    }), 3000;
}

data(printData);