Module: Ordinal

Included in:
Numeric
Defined in:
lib/ordinal.rb,
lib/ordinal/version.rb

Constant Summary collapse

VERSION = 
"1.0.0"

Instance Method Summary collapse

Instance Method Details

#suffixes ⇒ Object 



21
22
23
 
# File 'lib/ordinal.rb', line 21

def suffixes
  ['th','st','nd','rd','th','th','th','th','th','th']
end

#to_ordinal ⇒ Object 



5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
# File 'lib/ordinal.rb', line 5

def to_ordinal
  
  number = self.to_i

  case
  when number == 0
    0.to_s
  when (number % 100 >= 11 and
        number % 100 <= 13)
    number.to_s << 'th'
  else
    number.to_s << suffixes[number % 10]
  end
  
end