Get stdout as a fd in node.js

Question

I'd like ANSI C style stdout operations on stdout.

That is, I'd like to be able to treat a file descriptor and stdout in exactly the same way.

Raynos · Accepted Answer · 2011-12-20 02:07:06Z

12

One can use fs.read to read from a file descriptor and fs.write to write to a file descriptor.

Since process.stdout is a Stream it has a property fd which refers to the file descriptor.

fs.write(process.stdout.fd, new Buffer("hello world"), 0, 11, 0)

Note that the fd property is undocumented and might disappear in later versions of node.

Since this isn't documented anywhere you basically have to read the source

edited Dec 20, 2011 at 2:07

answered Dec 20, 2011 at 1:56

Raynos

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1 Comment

Nickolay Over a year ago

The process.std***.fd properties are documented nowadays. TypeScript doesn't know about that though, so it's useful to know the fd of stdout is always 1.

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