IronScripter_a-beginner-powershell-function-challenge.ps1

function Get-Fahrenheit {
    [CmdletBinding()]
    Param(
        [Parameter(ValueFromPipeline=$true,
        Mandatory=$true)]
        [ValidateNotNullOrEmpty()]
        [ValidatePattern('^(\d*\.)?\d+$')]
        [decimal]$CelsiusTemp
    )
    [PSCustomObject]@{
        Fahrenheit = "$(($CelsiusTemp*1.8)+32)"
        Celsius = "$CelsiusTemp"
    }
}
 function Get-Celsius {
    [CmdletBinding()]
    Param(
        [Parameter(ValueFromPipeline=$true,
        Mandatory=$true)]
        [ValidateNotNullOrEmpty()]
        [ValidatePattern('^(\d*\.)?\d+$')]
        [decimal]$FahrenheitTemp
    )
    [PSCustomObject]@{
        Celsius = "$(($FahrenheitTemp-32)/1.8)"
        Fahrenheit = "$FahrenheitTemp"
    }
}

Feel free to check out my response to the challenge.
https://gist.github.com/thedavecarroll/458429ec442b109ea8d6ba46b9ed7b18

Regarding your solution, here's a couple notes:

• Consider allowing negative temperatures. Though it wasn't explicit, many times you will be given incomplete (or assumed) requirements.
• Also, consider looking at Get-Verb to help pick the verb to use for best practice. Convert, ConvertFrom, and ConvertTo from the Data group seems to be the best choice, in my opinion.
• Cool (pun intended) that we both settled on [decimal] type.
• Looks like you figured out the pipeline input. Kudos.

These challenges are fun. I hope you think so, too.

Thanks for your submission. I'm sure the Chairman is pleased. :)

Thanks for the feedback!