JSFiddle - React, Tailwind, and code Playground

HTML

<img src="http://www.zastavki.com/pictures/originals/2013/Photoshop_Image_of_the_horse_053857_.jpg" id="something" />

JavaScript

var myVar = setInterval(function(){
    console.log("loading")
    if( document.getElementById("something").complete ) {
        console.log( "loaded" );
        clearInterval(myVar);
    }
}, 500);