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doc: document process.{stderr.fd, stdin.fd, stdout.fd} #31395

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doc: document process.{stderr.fd, stdin.fd, stdout.fd} #31395

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doc: document process.std*.fd
HarshithaKP Jan 17, 2020
a89248c
fixup: address review comment
HarshithaKP Jan 17, 2020
bad564f
fixup: address review comment
HarshithaKP Jan 20, 2020
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24 changes: 24 additions & 0 deletions doc/api/process.md
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Expand Up @@ -2158,6 +2158,14 @@ 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}
Expand Down Expand Up @@ -2191,6 +2199,14 @@ 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}
Expand All @@ -2209,6 +2225,14 @@ 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
Expand Down