instance method `blank?`

Ruby on Rails 4.0.13

Since v3.1.12

Compare with:

blank?()

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

''.blank?                 # => true
'   '.blank?              # => true
'　'.blank?               # => true
' something here '.blank? # => false

Source

# File activesupport/lib/active_support/core_ext/object/blank.rb, line 92
  def blank?
    self !~ /[^[:space:]]/
  end

Defined in activesupport/lib/active_support/core_ext/object/blank.rb line 92 · View on GitHub · Improve this page · Find usages on GitHub

Defined in String

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