method

index

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

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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

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