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Discussion on: Daily Coding Puzzles - Nov 4th - Nov 9th

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Replies for: Wednesday Array.diff (6 KYU): Your goal in this kata is to implement a difference function, which subtracts one list from another and returns th...

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Tyler Leonhardt • • Edited

PowerShell

$a | ? { $_ -notin $b }

Expanding the ? alias:

$a = @(1,2,3,4)
$b = @(2,3,4,5)

$a | Where-Object { $_ -notin $b }