Function Filter

docs/app/js/sanddance-app.js:117287–117289

* Filters data tuples according to a predicate function. * @constructor * @param {object} params - The parameters for this operator. * @param {function(object): *} params.expr - The predicate expression function * that determines a tuple's filter status. Truthy values pass the filter.

(params)

 * @param {function(object): *} params.expr - The predicate expression function
 *   that determines a tuple's filter status. Truthy values pass the filter.
 */ function Filter(params) {
    (0, _vegaDataflow.Transform).call(this, (0, _vegaUtil.fastmap)(), params);
}
Filter.Definition = {
    "type": "Filter",
    "metadata": {