Function ia

resources/vega-lite.min.js:2265–2267

(e)

    return (aa(e) && !pa(e)) || ra(e);
  }
  function ia(e) {
    return (aa(e) && "quantitative" === e.type && !e.bin) || ra(e);
  }
  function ra(e) {
    return ta(e) && t.isNumber(e.datum);
  }