Substring: Difference between revisions

=={{header|PowerShell}}==

Since .NET and PowerShell use zero-based indexing, all character indexes have to be reduced by one.

<lang powershell># 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'</lang>