Method constructor

resources/vega.min.js:14171–14176

(t, e)

  }
  class sv {
    constructor(t, e) {
      ((this._active = null),
        (this._handlers = {}),
        (this._loader = t || ca()),
        (this._tooltip = e || uv));
    }
    initialize(t, e, n) {
      return ((this._el = t), (this._obj = n || null), this.origin(e));
    }