Adding help to functions

PowerShell is strong on help documentation. This is reflected in the extensive documentation given in all of the first-party cmdlets as well as most third-party and community cmdlets. As seen in Chapter 1, Introducing PowerShell Core, the Get-Help cmdlet itself runs in different modes, such as Example and Full.

Let's add some help documentation to the Start-Count cmdlet.

How to do it...

Help in PowerShell is comment-based. Therefore, add the following comment block right after the function declaration:

function Start-Count {
    <#
    .SYNOPSIS
    This cmdlet counts seconds by accepting a from and a to value. The from value is optional.
    
    .DESCRIPTION
    This cmdlet is a counting...