Class: String

Inherits:

Object

• Object
• String

Defined in:

lib/core_ext/blank.rb,
lib/core_ext/snake_case.rb more...

Constant Summary

NON_WHITESPACE_REGEXP =

0x3000: fullwidth whitespace

%r![^\s#{[0x3000].pack("U")}]!

Instance Method Summary

• #blank? ⇒ Boolean

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

• #to_snake_case ⇒ Object
• #to_snake_case! ⇒ Object

  ruby mutation methods have the expectation to return self if a mutation occurred, nil otherwise.

Instance Method Details

#blank? ⇒ Boolean

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

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

Returns:

• (Boolean)

# File 'lib/core_ext/blank.rb', line 103

def blank?
  self !~ NON_WHITESPACE_REGEXP
end

#to_snake_case ⇒ Object

# File 'lib/core_ext/snake_case.rb', line 10

def to_snake_case
  dup.tap { |s| s.to_snake_case! }
end

#to_snake_case! ⇒ Object

ruby mutation methods have the expectation to return self if a mutation occurred, nil otherwise. (see www.ruby-doc.org/core-1.9.3/String.html#method-i-gsub-21)

# File 'lib/core_ext/snake_case.rb', line 5

def to_snake_case!
  gsub!(/(.)([A-Z])/,'\1_\2')
  downcase!
end