Function memoizeOneWithFlag

components/dash-table/src/core/memoizer.ts:28–47

(
    fn: ResultFn<TArgs, TEntry>
)

}

export function memoizeOneWithFlag<TArgs extends any[], TEntry>(
    fn: ResultFn<TArgs, TEntry>
): ResultFn<TArgs, ICachedResultFn<TEntry>> {
    let lastArgs: any[] | null = null;
    let lastResult: any;
    let isFirst = true;

    return (...args: TArgs): ICachedResultFn<TEntry> => {
        const res = isEqualArgs(lastArgs, args)
            ? {cached: true, first: isFirst, result: lastResult}
            : {
                  cached: false,
                  first: isFirst,
                  result: (lastArgs = args) && (lastResult = fn(...args))
              };
        isFirst = false;

        return res;
    };
}

export function memoizeAll<TArgs extends any[], TEntry>(
    fn: ResultFn<TArgs, TEntry>