strings/Get-CommonString.ps1
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function Get-CommonString { <# .SYNOPSIS Gets common part of two strings .DESCRIPTION Searches for common part of two strings, starting from the beginning .PARAMETER Word1 First word .PARAMETER Word2 Second Word .EXAMPLE Get-CommonString "website" "web" Output: 'web' #> param ( [Parameter(Mandatory = $true, Position = 0)] [string]$Word1, [Parameter(Mandatory = $true, Position = 1)] [string]$Word2 ) $common = $null $index = 0 $same = $true do { if ($Word1[$index] -eq $Word2[$index]) { $common += $Word1[$index] $index++ } else { $same = $false } } while ($same -and $index -lt $Word1.Length -and $index -lt $Word2.Length) $common } |