Confusion with using Break and nested if statements

user_15789611 0
Viewed 142

where does a break bring me? If I have nested if's does a break bring me 1 up or all the way out?

It this example below if I want to get to the if ($UTC) how do I get there?

If ($UTC) {
    If (!$NoSeperators) {  
        If ($JustDate) {
            $FullPath = Join-AnyPath $DirectoryName ((Get-Date).ToUniversalTime().ToString("yyyy_MM_dd-") + ($ReportNameExt))
            Break 
        }

        IF ($NoSeconds) { 
            $FullPath = Join-AnyPath $DirectoryName ((get-date).ToUniversalTime().ToString("yyyy_MM_ddThhmm-") + ($ReportNameExt))
            Break
        }

        $FullPath = Join-AnyPath $DirectoryName ((Get-Date).ToUniversalTime().ToString("yyyy_MM_ddThhmmss-") + ($ReportNameExt))
      
    }
    # Remove dash and underscores with NoSeperators switch.
    IF ($NoSeperators) {
        IF ($JustDate) {
            $FullPath = Join-AnyPath $DirectoryName ((Get-Date).ToUniversalTime().ToString("yyyyMMdd") + ($ReportNameExt))
            Break
        }

        IF ($NoSeconds) {
            $FullPath = Join-AnyPath $DirectoryName ((get-date).ToUniversalTime().ToString("yyyyMMddThhmm") + ($ReportNameExt))
            Break
        }

        $FullPath = Join-AnyPath $DirectoryName ((Get-Date).ToUniversalTime().ToString("yyyyMMddThhmmss") + ($ReportNameExt))
    }
}
powershell
2 Answers

The break and continue statements only apply to:

Notably, they are not meaningful in if statements and in the pipeline (such as in script blocks passed to the ForEach-Object and Where-Object cmdlets).

Outside these contexts, break and continue should be avoided, because their behavior is treacherous:

  • PowerShell looks up the call stack for an enclosing loop / switch statement anywhere and breaks out of that.

    • For instance, if you use break outside of a relevant statement but the script that called yours happens to have called from inside a relevant statement, your script is exited as a whole, and the calling script's statement is broken out of.

  • If there is no such statement on the entire call stack, execution ends quietly altogether.

As for what you tried:

Unless the code snippet in your question is embedded in a break-relevant statement (that you're not showing), your script will exit as a whole when break executes - either way, this is not what you intended.

To solve your problem, use single if statements with elseif branches, as shown in Ashish Jain's helpful answer.

user_453750

You can try below code, just use the if-else your task would be done.

If ($UTC) {
    If (!$NoSeperators) {  
        If ($JustDate) {
            $FullPath = Join-AnyPath $DirectoryName ((Get-Date).ToUniversalTime().ToString("yyyy_MM_dd-") + ($ReportNameExt))
        }
        elseif ($NoSeconds) { 
            $FullPath = Join-AnyPath $DirectoryName ((get-date).ToUniversalTime().ToString("yyyy_MM_ddThhmm-") + ($ReportNameExt))
        }
        else {
            $FullPath = Join-AnyPath $DirectoryName ((Get-Date).ToUniversalTime().ToString("yyyy_MM_ddThhmmss-") + ($ReportNameExt))
        }
    }
    # Remove dash and underscores with NoSeperators switch.
    else {
        IF ($JustDate) {
            $FullPath = Join-AnyPath $DirectoryName ((Get-Date).ToUniversalTime().ToString("yyyyMMdd") + ($ReportNameExt))
        }
        elseif ($NoSeconds) {
            $FullPath = Join-AnyPath $DirectoryName ((get-date).ToUniversalTime().ToString("yyyyMMddThhmm") + ($ReportNameExt))
        }
        else {
            $FullPath = Join-AnyPath $DirectoryName ((Get-Date).ToUniversalTime().ToString("yyyyMMddThhmmss") + ($ReportNameExt))
        }
    }
}
user_67481900
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