Always run node with the --harmony flag
If you are talking about running interactively, you can use a bash alias
. Put this in your ~/.bashrc
:
alias node="node --harmony"
(For the below: note that when I say "executable", I don't just mean binaries or ".exe files". "Executables" include anything that can be executed without explicitly invoking an interpreter, which includes scripts with a shebang.)
If you want to run an executable, e.g. within another script, you can create a shell script that launches the target with the extra flag:
Create a nodeHarmony
and put it in your search path, e.g. /usr/local/bin
:
#!/bin/sh
node --harmony "$@"
Then chmod a+x
it.
Then execute nodeHarmony
whenever you want that flag appended. If you want to replace the node
executable, you could probably rename node
to something else (e.g. node_original
), name the script node
, and use node_original
within the script.
You could also create the equivalent Windows batch script, which would work outside Cygwin/MinGW:
@echo off
node --harmony %*
This would behave similarly, but may exhibit odd effects with some argument combinations, because the list would get parsed twice - once when executing the batch script, and once within the script when executing node
. Some workarounds here.
If you are ready to recompile node.js, the article How to obtain harmony in your node.js says :
Once you’ve got the source code, open up
deps/v8/src/flag-definitions.h
and look for Line 115. Change the flag from false to true :DEFINE_bool(harmony, true, "enable all harmony features")
Then compile Node :
./configure && make && make install