PowerShell - hamming

powershell/hamming/HammingDifference.ps1

@@ -0,0 +1,10 @@
+function Get-HammingDifference([string]$A, [string]$B) {
+    if ($A.Length -ne $B.Length) {
+        Throw("Left and right strands must be of equal length.")
+    }
+
+    [int] $hamming = 0
+    0..$A.Length | % { if ($A[$_] -ne $B[$_]) { $hamming++ } }
+
+    return $hamming
+}