doc: document process.std*.fd

Fixes: https://github.com/nodejs/node/issues/28386
Refs: https://github.com/nodejs/node/pull/31292
Refs: https://github.com/nodejs/help/issues/2136

PR-URL: https://github.com/nodejs/node/pull/31395
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
This commit is contained in:
Harshitha KP
2020-01-17 02:02:03 -05:00
committed by Anna Henningsen
parent 4f11fb6410
commit 343ddffc1c

View File

@@ -2190,6 +2190,14 @@ a [Writable][] stream.
`process.stderr` differs from other Node.js streams in important ways. See
[note on process I/O][] for more information.
### `process.stderr.fd`
* {number}
This property refers to the value of underlying file descriptor of
`process.stderr`. The value is fixed at `2`. In [`Worker`][] threads,
this field does not exist.
## `process.stdin`
* {Stream}
@@ -2223,6 +2231,14 @@ In "old" streams mode the `stdin` stream is paused by default, so one
must call `process.stdin.resume()` to read from it. Note also that calling
`process.stdin.resume()` itself would switch stream to "old" mode.
### `process.stdin.fd`
* {number}
This property refers to the value of underlying file descriptor of
`process.stdin`. The value is fixed at `0`. In [`Worker`][] threads,
this field does not exist.
## `process.stdout`
* {Stream}
@@ -2241,6 +2257,14 @@ process.stdin.pipe(process.stdout);
`process.stdout` differs from other Node.js streams in important ways. See
[note on process I/O][] for more information.
### `process.stdout.fd`
* {number}
This property refers to the value of underlying file descriptor of
`process.stdout`. The value is fixed at `1`. In [`Worker`][] threads,
this field does not exist.
### A note on process I/O
`process.stdout` and `process.stderr` differ from other Node.js streams in