Function removeViewItemAt

web/src/js/ducks/flows/_utils.ts:22–38

(
    prevView: T[],
    prevViewIndex: Map<string, number>,
    pos: number,
)

}

export function removeViewItemAt<T extends Item>(
    prevView: T[],
    prevViewIndex: Map<string, number>,
    pos: number,
): { view: T[]; _viewIndex: Map<string, number> } {
    // update data
    const view = toSpliced(prevView, pos, 1);

    // update index
    const _viewIndex = new Map(prevViewIndex);
    _viewIndex.delete(prevView[pos].id);
    for (let i = view.length - 1; i >= pos; i--) {
        _viewIndex.set(view[i].id, i);
    }

    return { view, _viewIndex };
}

export function updateViewItem<T extends Item>(
    prevView: T[],