dom-helpers/esm/filterEventHandler.js

tiny modular DOM lib for ie9+

import contains from './contains';
import qsa from './querySelectorAll';
export default function filterEvents(selector, handler) {
  return function filterHandler(e) {
    var top = e.currentTarget;
    var target = e.target;
    var matches = qsa(top, selector);
    if (matches.some(function (match) {
      return contains(match, target);
    })) handler.call(this, e);
  };
}