PowerShell Gotchas: Looping with $null

For some obscene reason, PSHv1 will gladly iterate with a $null as an array element in Foreach. @($null, 1, $null, 2) | Foreach { “‘$_'”; } ”’1””2’ So, in the name of defensive programming, I’ve taken to manually testing for this case: @($null, 1, $null, 2) | Foreach { if ($_) { “‘$_'”; } } ‘1”2’…

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