Method appendData

src/data/DataStore.ts:325–343

* Caution: Can be only called on raw data (before `this._indices` created).

(data: ArrayLike<any>)

     * Caution: Can be only called on raw data (before `this._indices` created).
     */
    appendData(data: ArrayLike<any>): number[] {
        if (__DEV__) {
            assert(!this._indices, 'appendData can only be called on raw data.');
        }

        const provider = this._provider;
        const start = this.count();
        provider.appendData(data);
        let end = provider.count();
        if (!provider.persistent) {
            end += start;
        }

        if (start < end) {
            this._initDataFromProvider(start, end, true);
        }

        return [start, end];
    }

    appendValues(values: any[][], minFillLen?: number): { start: number; end: number } {
        const chunks = this._chunks;