Data commit

Task/Substring/PowerShell/substring.psh

@@ -0,0 +1,23 @@
+# test string
+$s = "abcdefgh"
+# test parameters
+$n, $m, $c, $s2 = 2, 3, [char]'d', $s2 = 'cd'
+
+# starting from n characters in and of m length
+# n = 2, m = 3
+$s.Substring($n-1, $m)              # returns 'bcd'
+
+# starting from n characters in, up to the end of the string
+# n = 2
+$s.Substring($n-1)                  # returns 'bcdefgh'
+
+# whole string minus last character
+$s.Substring(0, $s.Length - 1)      # returns 'abcdefg'
+
+# starting from a known character within the string and of m length
+# c = 'd', m =3
+$s.Substring($s.IndexOf($c), $m)    # returns 'def'
+
+# starting from a known substring within the string and of m length
+# s2 = 'cd', m = 3
+$s.Substring($s.IndexOf($s2), $m)   # returns 'cde'