JSFiddle - React, Tailwind, and code Playground

HTML

<img src="http://img3.wikia.nocookie.net/__cb20100520131746/logopedia/images/5/5c/Google_logo.png" />

JavaScript

function check(){
    if (document.getElementById("uiView_TestPic") && !(document.getElementById("uiView_TestPic").src == "http://img3.wikia.nocookie.net/__cb20100520131746/logopedia/images/5/5c/Google_logo.png")){
    window.setTimeout(check(), 2000);
    }else{
    alert("Done!");
    }}
    window.onload(check());