Domande di colloquio per Senior JavaScript presso TikTok

no hr calls, had 2 interviews, both coding, both talking. Quite few time for coding. All coding algorithms in real time. Algorithms not complex but hardly to imagine you can write 2 without mistakes in 15m timeframe. Quite weried. Non coding part - blabla - tell me about yourself, blabla how you optimize - random - no specific system, will be your luck.