Function ev

resources/vega.min.js:14126–14134

(t, e, n)

    );
  }
  function ev(t, e, n) {
    return (
      !t &&
        "undefined" != typeof document &&
        document.createElement &&
        (t = document),
      t ? (n ? t.createElementNS(n, e) : t.createElement(e)) : null
    );
  }
  function nv(t, e) {
    e = e.toLowerCase();
    for (var n = t.childNodes, r = 0, i = n.length; r < i; ++r)