instance method `index`

Ruby on Rails 2.2.3

Since v2.2.3 Last seen in v3.2.22.5

Available in: v2.2.3 v2.3.18 v3.0.20 v3.1.12 v3.2.22.5

Compare with:

index(needle, offset=0)

Returns the position needle in the string, counting in codepoints. Returns nil if needle isn’t found.

Example:

'Café périferôl'.mb_chars.index('ô') #=> 12
'Café périferôl'.mb_chars.index(/\w/u) #=> 0

Parameters

needle req
offset opt = 0

Source

# File activesupport/lib/active_support/multibyte/chars.rb, line 198
      def index(needle, offset=0)
        index = @wrapped_string.index(needle, offset)
        index ? (self.class.u_unpack(@wrapped_string.slice(0...index)).size) : nil
      end

Defined in activesupport/lib/active_support/multibyte/chars.rb line 198 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveSupport::Multibyte::Chars

Signature

Parameters