Function Xc

resources/vega-lite.min.js:6037–6039

(e)

    return t;
  }
  function Xc(e) {
    return e.map((e) => (e.on && !e.on.length && delete e.on, e));
  }
  const Qc = {
    defined: (e) =>
      "interval" === e.type &&