Wordress and packery.js integration issues but works on non wordpress site

I am trying to use packery.js on my wordpress theme, but it doesn't work.

It works when i use the exact same code on a test html site. It also works in wordpress when i initiate it with the html method, but as i also needs to use "imageloaded" i have to make it work with java script.

My guess is that something in wordpress is disrupting my jQuery or something, but i don't know what i could be?

I have tried using different versions of jquery but it dosent work.

My script:

var container = document.querySelector('#content');
var $pckry;
var $pckry = new Packery( container, {
// options
itemSelector: '.item',
gutter: 0,
});
// initialize Packery after all images have loaded
imagesLoaded( container, function() {
$pckry = new Packery( container );
});