Add a Truncate method to system.string

TruncateString.ps1

$Script = {
param([int]$MaxLength)

    switch ($this)
    {
        {[string]::IsNullOrEmpty($_)} {$this; break}
        {$_.Length -le $MaxLength} {$this; break}
        default {$_.SubString(0, $MaxLength)}
    }
}

$TypeDataSplat = @{
TypeName   = 'System.String'
MemberType = 'ScriptMethod'
MemberName = 'Truncate'
Value      = $Script
}

Update-TypeData  @TypeDataSplat -Force