How to addEventListener to future DOM elements?

event-listener, javascript

Solution

Events like click bubble, so you attach the event handler to the closest non-dynamic parent, and inside the event handler you check if it was the button being clicked by seeing if it was the event's target :

var parent = document.getElementById('pageArea');

if (parent.addEventListener) {
    parent.addEventListener('click', handler, false);
}else if (parent.attachEvent) {
    parent.attachEvent('onclick', handler);
}

function handler(e) {
    if (e.target.id == 'test') {
         // the button was clicked
    }
}

FIDDLE

Problem

File partial.html looks like this: `<button id="test">Hi I am from a partial!</button>` `Partial.html` is dynamically included on the page, using `XMLHttpRequest`: ``` var oReq = new XMLHttpRequest(); oReq.open('get', 'partial.html', true); oReq.send(); oReq.onload = function() { document.querySelector('#pageArea').innerHTML = this.response; }; ``` How can I add an event listener that will apply to future exisiting `#test` without doing it after it's content has been loaded and inserted into `#pageArea`? (No jQuery solutions, please!)

Original source

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