Method: String#is_digit?

Defined in:
lib/thefox-ext/ext/string.rb

#is_digit? ⇒ Boolean

Is a String only made of numbers?

Returns:

  • (Boolean) 


5
6
7
8
 
# File 'lib/thefox-ext/ext/string.rb', line 5

def is_digit?
  r = '0'..'9'
  self.split('').keep_if{ |c| r.include?(c) }.count == self.length
end