A technique that compiles code to native machine instructions while a program is running rather than entirely beforehand, letting a runtime combine the portability of interpreted code with performance closer to that of ahead-of-time compiled code.
Facts
Core PrincipleJust-in-time compilation is the compilation of computer code during execution of a program at run time rather than entirely before execution. 1 Connections
Sources
1. Just-in-time compilation - Wikipedia
History section
The earliest published JIT compiler is generally attributed to work on LISP by John McCarthy in 1960.
Lead section, opening sentence
compilation of computer code during execution of a program at run time rather than before execution
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