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.
'Now there's the threat of executions' in Iran
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2026-03-02 00:00:00:0段宝岩 多国加快推进空间太阳能电站技术研发
The interview section is the book’s crown jewel. It contains what are believed to be the only interviews ever conducted with several of its subjects—most notably Mark Flint (the enigmatic head of System Sacom). With rare input from people like Fukio “MTJ” Mitsuji (creator of Bubble Bobble, who died in 2008). For a number of the Western developers, these are the earliest known long-form interviews, predating the retro gaming preservation movement by over a decade.