method

index

v2.3.8 - Show latest stable - 0 notes - Class: ActiveSupport::Multibyte::Chars

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1 (0)
2.3.8 (0)
3.0.0 (1)
3.0.9 (-2)
3.1.0 (0)
3.2.1 (0)
3.2.8 (0)
3.2.13 (0)
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0
7.1.3.2
What's this?

index(needle, offset=0) public

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

Example:

  'CafÃ© pÃ©riferÃ´l'.mb_chars.index('Ã´') #=> 12
  'CafÃ© pÃ©riferÃ´l'.mb_chars.index(/\w/u) #=> 0

Show source

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

index

Related methods

Flowdock - Team Inbox With Chat