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I want to take a quick beat here to point out where we are in fact seeing some enforcement around prediction markets. Last week, Kalshi made its first ever disclosure related to an insider trading investigation, and fined the traders.
There’s a special case here: if the map contains a register at the given key, but the register contains null, the map is considered to not contain the key.
Animation: Jacqui VanLiew; source images: Getty Images