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doc: add a note about os.cpus() returning an empty list
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It is not obvious that in some cases cpus() returns an empty list and
this has caused a bug before:
isaacs/promise-call-limit#11

PR-URL: #47363
Reviewed-By: Ben Noordhuis <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
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codedokode authored and MoLow committed Jul 6, 2023
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Expand Up @@ -74,6 +74,8 @@ added: v0.3.3
* Returns: {Object\[]}

Returns an array of objects containing information about each logical CPU core.
The array will be empty if no CPU information is available, such as if the
`/proc` file system is unavailable.

The properties included on each object include:

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