JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>

JavaScript

var l_mattes_array = [];
var mattes = [];
mattes[0] = "<test><imgsrc>test1</imgsrc></test>";
mattes[1] = "<test><imgsrc>test2</imgsrc></test>";
$(mattes).each(function(i, el)
{
	var matte_array = [];
  matte_array.imgsrc = ($(el).find("imgsrc").first().text());
  l_mattes_array[i] = matte_array;
  console.log(l_mattes_array[i]);
});
console.log(l_mattes_array);