Ruby | Date <=>() method
Date#<=> is a Date class method which compares two date objects.
Syntax: Date<=>b
Parameter: Date values
Return: 1 if a is greater than b
-1 if a is less than b
0 if a equals b
Example #1 :
# Ruby code for Date.<=>() method # loading date require 'date' # declaring Date a = Date.new(2019, 1, 1) # declaring Date b = Date.jd(2452004) # declaring Date c = Date.ordinal(2019, 12) # Date puts "Date a : #{a}\n\n"puts "Date b : #{b}\n\n"puts "Date c : #{c}\n\n\n\n" # <=> form puts "Date a <=> form : #{a <=> c}\n\n"puts "Date b <=> form : #{b <=> Rational(10, 2)}\n\n"puts "Date c <=> form : #{c <=> Rational(10, 4)}\n\n" |
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Output :
Date a : 2019-01-01 Date b : 2001-04-04 Date c : 2019-01-12 Date a form : -1 Date b form : 1 Date c form : 1
Example #2 :
# Ruby code for Date.<=>() method # loading date require 'date' # declaring Date a = Date.parse('2019-01-01') # declaring Date b = Date.strptime('03-12-2019', '%d-%m-%Y') # declaring Date c = Date.commercial(2019, 5, 6) # Date puts "Date a : #{a}\n\n"puts "Date b : #{b}\n\n"puts "Date c : #{c}\n\n\n\n" # <=> form puts "Date a <=> form : #{a <=> c}\n\n"puts "Date b <=> form : #{b <=> Rational(10, 2)}\n\n"puts "Date c <=> form : #{c <=> Rational(10, 4)}\n\n" |
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Output :
Date a : 2019-01-01 Date b : 2019-12-03 Date c : 2019-02-02 Date a form : -1 Date b form : 1 Date c form : 1
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