Method _destroyDatasetMeta

src/core/core.controller.js:919–925

* @private

(datasetIndex)

	 * @private
	 */
  _destroyDatasetMeta(datasetIndex) {
    const meta = this._metasets[datasetIndex];
    if (meta && meta.controller) {
      meta.controller._destroy();
    }
    delete this._metasets[datasetIndex];
  }

  _stop() {
    let i, ilen;