Learn how to use it in our example notebook. spec Object A copy of the parsed JSON Vega or Vega-Lite spec. vgSpec Object The compiled Vega spec. finalize Function A method to ... opt Object (Optional) ...

When parsing JSON data, if a JSON field value is a number, and that number is really big, JavaScript loses precision. For example, the Twitter API exposes the Tweet ID. This is a large number that ...