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Luigi Plinge
Luigi Plinge

Reputation: 51109

Powershell function returns intermediate values

I'm probably misunderstanding how PowerShell functions work, but I have the following to extract the year from a string such as "abcdef20201123xyz":

function getYear($str) {
  $str -match ".*(?<year>[\d]{4})[\d]{4}.*"
  return $matches['year']
}

I expected getYear("abcdef20201123xyz") just to return "2020", but I get

True
2020

Why is this, and how do I just get what I put in the "return"?

Upvotes: 1

Views: 58

Answers (1)

Martin Brandl
Martin Brandl

Reputation: 58981

In PowerShell, every not handled function call is sent to the output. So you either assign the return value to a variable, or you pipe it to Out-Null:

function getYear($str) {
  $str -match ".*(?<year>[\d]{4})[\d]{4}.*" | out-null
  return $matches['year']
}

Upvotes: 1

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