private _updateContentNotChangedOnAxis()

in src/component/tooltip/TooltipView.ts [963:1012]
42 lines of code
22 McCabe index (conditional complexity)

    private _updateContentNotChangedOnAxis(
        dataByCoordSys: DataByCoordSys[],
        cbParamsList: TooltipCallbackDataParams[]
    ) {
        const lastCoordSys = this._lastDataByCoordSys;
        const lastCbParamsList = this._cbParamsList;
        let contentNotChanged = !!lastCoordSys
            && lastCoordSys.length === dataByCoordSys.length;

        contentNotChanged && each(lastCoordSys, (lastItemCoordSys, indexCoordSys) => {
            const lastDataByAxis = lastItemCoordSys.dataByAxis || [] as DataByAxis[];
            const thisItemCoordSys = dataByCoordSys[indexCoordSys] || {} as DataByCoordSys;
            const thisDataByAxis = thisItemCoordSys.dataByAxis || [] as DataByAxis[];
            contentNotChanged = contentNotChanged && lastDataByAxis.length === thisDataByAxis.length;

            contentNotChanged && each(lastDataByAxis, (lastItem, indexAxis) => {
                const thisItem = thisDataByAxis[indexAxis] || {} as DataByAxis;
                const lastIndices = lastItem.seriesDataIndices || [] as DataIndex[];
                const newIndices = thisItem.seriesDataIndices || [] as DataIndex[];

                contentNotChanged = contentNotChanged
                    && lastItem.value === thisItem.value
                    && lastItem.axisType === thisItem.axisType
                    && lastItem.axisId === thisItem.axisId
                    && lastIndices.length === newIndices.length;

                contentNotChanged && each(lastIndices, (lastIdxItem, j) => {
                    const newIdxItem = newIndices[j];
                    contentNotChanged = contentNotChanged
                        && lastIdxItem.seriesIndex === newIdxItem.seriesIndex
                        && lastIdxItem.dataIndex === newIdxItem.dataIndex;
                });

                // check is cbParams data value changed
                lastCbParamsList && each(lastItem.seriesDataIndices, (idxItem) => {
                    const seriesIdx = idxItem.seriesIndex;
                    const cbParams = cbParamsList[seriesIdx];
                    const lastCbParams = lastCbParamsList[seriesIdx];
                    if (cbParams && lastCbParams && lastCbParams.data !== cbParams.data) {
                        contentNotChanged = false;
                    }
                });
            });
        });

        this._lastDataByCoordSys = dataByCoordSys;
        this._cbParamsList = cbParamsList;

        return !!contentNotChanged;
    }