blank?()
Instance Public methods
A string is blank if it's empty or contains whitespaces only:
1 2 3 4 | ''.blank? # => true' '.blank? # => true"\t\n\r".blank? # => true' blah '.blank? # => false |
Unicode whitespace is supported:
1 | "\u00a0".blank? # => true |
@return [true, false]
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