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What Is a Just-in-Time Compiler?
There are two main types of programming languages: compilers and interpreters. Compilers convert source code into machine code before the program runs, while interpreters do it one statement at a time. A just-in-time compiler is kind of a hybrid between an interpreter and a head-of-time compilation. It can be significant if you're working on production-level code; for example, Python could be 50 times slower than C.