JSFiddle - React, Tailwind, and code Playground

HTML

<div id="output">url</div>

JavaScript

function getImg() {
    var url = 'http://placehold.it/300x300/123456';
    var $div = $('<div />');
    var $img = $('<img />', { src: url });
    $div.append($img);
    $('body').append($div);
}

getImg();

var interval = setInterval(function() {
    $('img').each(function() {
        var time = (new Date()).getTime();
        var oldurl = $(this).prop('src');
        var newurl = oldurl.substring(0, oldurl.lastIndexOf('/') + 1) + time.toString().substr(7, 6);
        $('#output').html(newurl);
        $(this).prop('src', newurl);
    });
}, 2000);