class String
Constants
- BLANK_RE
Public Instance Methods
blank?()
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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]
# File lib/support/blank.rb, line 120 def blank? # The regexp that matches blank strings is expensive. For the case of empty # strings we can speed up this method (~3.5x) with an empty? call. The # penalty for the rest of strings is marginal. empty? || BLANK_RE.match?(self) end