Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/core_ext/string.rb

Overview

from activesupport/lib/active_support/core_ext/object/blank.rb

Constant Summary collapse

BLANK_REGEX = 
/\A[[:space:]]*\z/

Instance Method Summary collapse

Instance Method Details

#blank? ⇒ true, false

A string is blank if it’s empty or contains whitespaces only:

''.blank?       # => true
'   '.blank?    # => true
"\t\n\r".blank? # => true
' blah '.blank? # => false

Unicode whitespace is supported:

"\u00a0".blank? # => true

Returns:

  • (true, false) 


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# File 'lib/core_ext/string.rb', line 18

def blank?
  BLANK_REGEX === self
end