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by logn 4329 days ago
Garbage collection would be a problem in realtime algos. And efficiency is ~10x slower than C. But as far as writing bug free code, I'd take JavaScript over C. But I'd take Java over both of them and the JVM has a lot of GC configuration options (in addition to real-time JVMs, but those can cost a lot of money).

Anyhow, for user-submitted code like this trading site, I think JS is the only realistic option since it can be sandboxed so safely.