instance method `rindex`

Ruby on Rails 3.2.22.5

Since v2.3.18 Last seen in v3.2.22.5

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

Compare with:

rindex(needle, offset=nil)

Returns the position needle in the string, counting in codepoints, searching backward from offset or the end of the string. Returns nil if needle isn’t found.

Example:

'Café périferôl'.mb_chars.rindex('é')   # => 6
'Café périferôl'.mb_chars.rindex(/\w/u) # => 13

Parameters

needle req
offset opt = nil

Source

# File activesupport/lib/active_support/multibyte/chars.rb, line 163
        def rindex(needle, offset=nil)
          offset ||= length
          wrapped_offset = first(offset).wrapped_string.length
          index = @wrapped_string.rindex(needle, wrapped_offset)
          index ? (Unicode.u_unpack(@wrapped_string.slice(0...index)).size) : nil
        end

Defined in activesupport/lib/active_support/multibyte/chars.rb line 163 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveSupport::Multibyte::Chars

Signature

Parameters