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Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →

instance method

String#rjust

rjust(size, pad_string = ' ') → new_string

Returns a right-justified copy of self.

If integer argument size is greater than the size (in characters) of self, returns a new string of length size that is a copy of self, right justified and padded on the left with pad_string:

Example
'hello'.rjust(10)       # => "     hello"
'hello  '.rjust(10)     # => "   hello  "
'hello'.rjust(10, 'ab') # => "ababahello"
'тест'.rjust(10)        # => "      тест"
'こんにちは'.rjust(10)    # => "     こんにちは"

If size is not greater than the size of self, returns a copy of self:

Example
'hello'.rjust(5, 'ab')  # => "hello"
'hello'.rjust(1, 'ab')  # => "hello"

Related: String#ljust, String#center.

Ruby version changes

  1. 3.0
See also #rindex #rpartition #reverse! #rstrip also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0