WhenInDOM

A library agnostic javascript function for listening when node gets inserted to DOM. Should work in older browsers too, but will be slower as cannot use mutationObservers.

Usage

// Lets say you have a div not rendered
var a = document.createElement('div');

// you can listen to when it gets rendered like this
var myObserver = new WhenInDOM(a, function () {
  alert('Got inserted to dom');
});

// lets insert it
setTimeout(function () {
    document.body.appendChild(a);
}, 1000);

When observing should be stopped before element has recieved in DOM, the following should be done:

myObserver.stop();

Happy birthday Mikk Pristavka!

Hope it will cheer You up more than once.