Function DataJoin

docs/app/js/sanddance-app.js:129533–129535

* Joins a set of data elements against a set of visual items. * @constructor * @param {object} params - The parameters for this operator. * @param {function(object): object} [params.item] - An item generator function. * @param {function(object): *} [params.key] - The key field associating data a

(params)

 * @param {function(object): object} [params.item] - An item generator function.
 * @param {function(object): *} [params.key] - The key field associating data and visual items.
 */ function DataJoin(params) {
    (0, _vegaDataflow.Transform).call(this, null, params);
}
function defaultItemCreate() {
    return (0, _vegaDataflow.ingest)({});
}