- started evaluating the engines in trying to run the JS beautifier
- tamarin
- JIT engine donated by Adobe to Mozilla
- used in Flash 9
- written in C++
- separate compiler (
asc
) and executor (avmplus
) - the
shell
module contains a number of system/IO facilities
(toplevel.as
) - “Tamarin was designed to do better with type annotations than without. This is
why SpiderMonkey actually wins some of those benchmarks against Tamarin on untyped code.
Our work with SpiderMonkey and Tamarin now in the ActionMonkey project aims to make it
fast for untyped code as well.”
- rhino
- written in Java
- spidermonkey
- written in C++
help()
load()
includes javascript filesreadline()
doesn’t really work that great, since itarguments
for command-line args
- es4
- reference implementation of ECMAScript 4 (Javascript 2)
- written in SML
- very slow; it actually times out when running the beautifier (I get “Alarm
Clock”)
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