Bit of an understatement. SpiderMonkey was the first JavaScript engine (out of all of them), born in 1996, made by refactoring the scraps of Mocha that was the

Bit of an understatement. SpiderMonkey was the first JavaScript engine (out of all of them), born in 1996, made by refactoring the scraps of Mocha that was the initial prototype made by Eich.