Function Lookup

docs/app/js/sanddance-app.js:117926–117928

* Extend tuples by joining them with values from a lookup table. * @constructor * @param {object} params - The parameters for this operator. * @param {Map} params.index - The lookup table map. * @param {Array } pa

(params)

 * @param {Array<string>} params.as - Output field names for each lookup value.
 * @param {*} [params.default] - A default value to use if lookup fails.
 */ function Lookup(params) {
    (0, _vegaDataflow.Transform).call(this, {}, params);
}
Lookup.Definition = {
    "type": "Lookup",
    "metadata": {