zwip/src/polyfills/matchesSelector.js

Utility for creating JS animations on top of W3C [requestAnimationFrame](https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame) function.

Element.prototype.matches =
  Element.prototype.matches ||
  Element.prototype.matchesSelector ||
  Element.prototype.mozMatchesSelector ||
  Element.prototype.msMatchesSelector ||
  Element.prototype.oMatchesSelector ||
  Element.prototype.webkitMatchesSelector ||
  function(s) {
    const matches = (this.document || this.ownerDocument).querySelectorAll(s);
    let i = matches.length;
    while (--i >= 0 && matches.item(i) !== this) {}
    return i > -1;
  };