Function Eu

resources/vega.min.js:6010–6017

(t)

    (Fa.call(this, t), (this.parent = e), (this.count = 0));
  }
  function Eu(t) {
    (Xa.call(this, {}, t), (this._keys = ct()));
    const e = (this._targets = []);
    ((e.active = 0),
      (e.forEach = (t) => {
        for (let n = 0, r = e.active; n < r; ++n) t(e[n], n, e);
      }));
  }
  function Du(t) {
    Fa.call(this, null, Cu, t);
  }