vega_explicit = {
const [Vega, VegaLite] = await Promise.all([
require("vega@5/build/vega.min.js"),
require("vega-lite@3/build/vega-lite.min.js")
]);
return async spec => {
const div = document.createElement("div");
const view = new Vega.View(Vega.parse(VegaLite.compile(spec).spec));
await view.initialize(div).runAsync();
return div;
};
}