String methods

Acronym
Acronym in PowerShell 
Function Get-Acronym() {
    [CmdletBinding()]
    Param (
        [string]$Phrase
    )
    ( $Phrase -replace "[-_]"," " -split " " | Foreach-Object {$_[0].ToString().ToUpper()} ) -join ""
}

Find and replace strings.
About Split operator.
About Join operator.

19th Feb 2025 · Found it useful?

Other Approaches to Acronym in PowerShell

Other ways our community solved this exercise
Function Get-Acronym() {
    [CmdletBinding()]
    Param (
        [string]$Phrase
    )
    (-join ([regex]::Matches($Phrase, "\p{L}+'?\p{L}*") | ForEach-Object { $_.Value[0] })).ToUpper()
}
Regular expression

Approach using regular expression to deal with string 

foreach ($char in $Phrase.ToCharArray()) {
    if ($newWord -and $char -match "[a-z]") {
        $acronym += $char
        $newWord = $false
    }
    if (-not $newWord -and $char -match "[_\- ]") {
        $newWord = $true
    }
Loop and boolean

Approach using foreach loop and boolean flag