How can my node.js code see if it's running un

问题:

There are now several forks of nodejs for various reasons.

For my node code to see which fork it is running under, what is currently the best way?

The forks I am aware of are:

• The official nodejs release
• iojs - I guess it's now deprecated since it's rejoined the official nodejs, but it's still of interest
• JXcore - a fork that supports multiple CPUs/core; multiple JS engines including V8, Mozilla's SpiderMonkey, and Microsoft's ChakraCore; and packaging of js apps so npm doesn't need to be used by users of the apps
• Microsoft's fork of nodejs using their Edge browser's ChakraCore JS engine via a V8-compatibility shim

(I've also asked a companion question about detecting which JS engine is being used. This question is only about detecting which fork is being used.)

回答1:

NodeJS and iojs can be probably checked by process.release :

name: a string with a value that will always be 'node' for Node.js. For legacy io.js releases, this will be 'io.js'.

As for JXcore you can use either process.jxversion or typeof jxcore !== 'undefined'