Method _resyncElements

src/core/core.datasetController.js:962–989

* @private

(resetNewElements)

	 * @private
	 */
  _resyncElements(resetNewElements) {
    const data = this._data;
    const elements = this._cachedMeta.data;

    // Apply changes detected through array listeners
    for (const [method, arg1, arg2] of this._syncList) {
      this[method](arg1, arg2);
    }
    this._syncList = [];

    const numMeta = elements.length;
    const numData = data.length;
    const count = Math.min(numData, numMeta);

    if (count) {
      // TODO: It is not optimal to always parse the old data
      // This is done because we are not detecting direct assignments:
      // chart.data.datasets[0].data[5] = 10;
      // chart.data.datasets[0].data[5].y = 10;
      this.parse(0, count);
    }

    if (numData > numMeta) {
      this._insertElements(numMeta, numData - numMeta, resetNewElements);
    } else if (numData < numMeta) {
      this._removeElements(numData, numMeta - numData);
    }
  }

  /**
	 * @private