Method assemble

resources/vega-lite.min.js:9611–9635

()

      );
    }
    assemble() {
      const e = [];
      let t = null;
      const n = this.getChildIndependentFieldsWithStep(),
        { column: i, row: r, facet: o } = this;
      if (i && r && (n.x || n.y)) {
        t = `cross_${this.column.name}_${this.row.name}`;
        const i = [].concat(n.x ?? [], n.y ?? []),
          r = i.map(() => "distinct");
        e.push({
          name: t,
          source: this.data,
          transform: [
            { type: "aggregate", groupby: this.fields, fields: i, ops: r },
          ],
        });
      }
      for (const i of [Z, K])
        this[i] && e.push(this.assembleRowColumnHeaderData(i, t, n));
      if (o) {
        const t = this.assembleFacetHeaderData(n);
        t && e.push(...t);
      }
      return e;
    }
  }
  function Fd(e) {
    return (e.startsWith("'") && e.endsWith("'")) ||