Method isFail

packages/sdk/src/Result.ts:58–60

* Checks whether the result is a failure. * * @returns `true` if the result is `fail`, otherwise `false`. * Acts as a type guard to narrow the type to a failed result.

()

     *          Acts as a type guard to narrow the type to a failed result.
     */
    public isFail(): this is { _error: TError } & Result<TValue, TError> {
        return !this._isOk;
    }

    /**
     * Gets the value inside a successful result.