Method getDatasetMeta

src/core/core.controller.js:829–853

(datasetIndex)

  }

  getDatasetMeta(datasetIndex) {
    const dataset = this.data.datasets[datasetIndex];
    const metasets = this._metasets;
    let meta = metasets.filter(x => x && x._dataset === dataset).pop();

    if (!meta) {
      meta = {
        type: null,
        data: [],
        dataset: null,
        controller: null,
        hidden: null,			class="cm">// See isDatasetVisible() comment
        xAxisID: null,
        yAxisID: null,
        order: dataset && dataset.order || 0,
        index: datasetIndex,
        _dataset: dataset,
        _parsed: [],
        _sorted: false
      };
      metasets.push(meta);
    }

    return meta;
  }

  getContext() {
    return this.$context || (this.$context = createContext(null, {chart: this, type: class="st">'chart'}));