instance method `blank?`

Ruby on Rails 4.1.16

Since v3.1.12

Compare with:

blank?()

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

@return [true, false]

Source

# File activesupport/lib/active_support/core_ext/object/blank.rb, line 116
  def blank?
    BLANK_RE === self
  end

Defined in activesupport/lib/active_support/core_ext/object/blank.rb line 116 · View on GitHub · Improve this page · Find usages on GitHub

Defined in String

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