method

chars

v1.2.6 - Show latest stable - 0 notes - Class: ActiveSupport::CoreExtensions::String::Unicode

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What's this?

chars() public

chars is a Unicode safe proxy for string methods. It creates and returns an instance of the ActiveSupport::Multibyte::Chars class which encapsulates the original string. A Unicode safe version of all the String methods are defined on this proxy class. Undefined methods are forwarded to String, so all of the string overrides can also be called through the chars proxy.

  name = 'Claus MÃ¼ller'
  name.reverse #=> "rell??M sualC"
  name.length #=> 13

  name.chars.reverse.to_s #=> "rellÃ¼M sualC"
  name.chars.length #=> 12

All the methods on the chars proxy which normally return a string will return a Chars object. This allows method chaining on the result of any of these methods.

  name.chars.reverse.length #=> 12

The Char object tries to be as interchangeable with String objects as possible: sorting and comparing between String and Char work like expected. The bang! methods change the internal string representation in the Chars object. Interoperability problems can be resolved easily with a to_s call.

For more information about the methods defined on the Chars proxy see ActiveSupport::Multibyte::Chars and ActiveSupport::Multibyte::Handlers::UTF8Handler

Show source

# File activesupport/lib/active_support/core_ext/string/unicode.rb, line 30
        def chars
          ActiveSupport::Multibyte::Chars.new(self)
        end

chars

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