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doc: correct info in child_process.md

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`child.stderr`, `child.stdin`, and `child.stdout`
are `null`, not `undefined`, if the relevant `stdio` properties
are set to anything other than 'pipe'.

PR-URL: https://github.com/nodejs/node/pull/11949
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit is contained in:
Vse Mozhet Byt 2017-03-21 00:35:24 +02:00 committed by James M Snell
parent c8eec76c5f
commit 76279cbb5c
1 changed files with 3 additions and 3 deletions
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doc/api/child_process.md
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@ -1132,7 +1132,7 @@ added: v0.1.90
A `Readable Stream` that represents the child process's `stderr`.
If the child was spawned with `stdio[2]` set to anything other than `'pipe'`,
then this will be `undefined`.
then this will be `null`.
`child.stderr` is an alias for `child.stdio[2]`. Both properties will refer to
the same value.
@ -1150,7 +1150,7 @@ A `Writable Stream` that represents the child process's `stdin`.
continue until this stream has been closed via `end()`.*
If the child was spawned with `stdio[0]` set to anything other than `'pipe'`,
then this will be `undefined`.
then this will be `null`.
`child.stdin` is an alias for `child.stdio[0]`. Both properties will refer to
the same value.
@ -1205,7 +1205,7 @@ added: v0.1.90
A `Readable Stream` that represents the child process's `stdout`.
If the child was spawned with `stdio[1]` set to anything other than `'pipe'`,
then this will be `undefined`.
then this will be `null`.
`child.stdout` is an alias for `child.stdio[1]`. Both properties will refer
to the same value.