Add a note to docs about os.cpus() returning an empty list

Some developers might be not aware that os.cpus() may return an empty list. This [has caused a bug before](isaacs/promise-call-limit#11).
codedokode · Apr 1, 2023 · 35286c4 · 35286c4
1 parent 4c9ec98
commit 35286c4
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diff --git a/doc/api/os.md b/doc/api/os.md
@@ -146,6 +146,9 @@ are always 0.
 available to an application. Use
 [`os.availableParallelism()`](#osavailableparallelism) for this purpose.
 
+On Linux and Android when `/proc` filesystem is not accessible, this function 
+may return an empty list.
+
 ## `os.devNull`
 
 <!-- YAML