Friday 13th Part II
No not the film
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| function get-fri13 {
<# .SYNOPSIS Calculates each Friday 13th for a given year .DESCRIPTION .PARAMETER year Specifies the year as an integer .EXAMPLE for current year get-fri13 for single year get-fr13 2010 for multiple years 2010..2020 | foreach {get-fri13 $_} .INPUTS Year as Integer #>
param (
[parameter(ValueFromPipeline=$true)]
[int]$year = (Get-Date).Year
)
1..12 | foreach {
$d = [datetime]"$_/13/$year"
if ($d.DayOfWeek -eq "Friday"){
$d.ToLongDateString()
}
}
} |
With the last friday 13th out of the way for this year I thought I’d convert my script into a function while I was seeing what next year brings. Its the first function in my datetime module and I’ve added some comment based help.
One quick point – if you use mandatory=$true in the parameter block it overrides the default value and expects a value to be given
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