Function C

resources/vega.min.js:146–154

(t, e)

    else t[e] = n;
  }
  function C(t, e) {
    if (null == t) return e;
    const n = {},
      r = [];
    function i(t) {
      n[t.name] || ((n[t.name] = 1), r.push(t));
    }
    return (e.forEach(i), t.forEach(i), r);
  }
  function F(t) {
    return t[t.length - 1];
  }