PowerShell - leap, raindrops, reverse-string, two-fer

powershell/leap/LeapYear.ps1

@@ -0,0 +1,9 @@
+function Test-LeapYear {
+    param( [int]$year )
+
+    if ((($year % 4 -eq 0) -and !($year % 100 -eq 0)) -or ($year % 400 -eq 0)) {
+        return $true
+    }
+    
+    return $false
+}