Function encode

resources/vega.min.js:3374–3381

(t, e)

        );
      },
      encode(t, e) {
        return (
          J(t)
            ? i.push({ filter: t, field: e })
            : n.push({ tuple: t, field: e }),
          this
        );
      },
      clean(t) {
        return ((o = t), this);
      },