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Ruby | Hash size() method
  • Last Updated : 07 Jan, 2020

Hash#size() is a Hash class method which returns the count of key-value pair in the hash.

Syntax: Hash.size()

Parameter: Hash values

Return: count of key-value pair in the hash.

Example #1 :






# Ruby code for Hash.size() method
  
# declaring Hash value
a = {a:100, b:200}
  
# declaring Hash value
b = {a:100, c:300, b:200}
  
# declaring Hash value
c = {a:100}
  
  
# size Value
puts "Hash a size form : #{a.size}\n\n"
  
puts "Hash b size form : #{b.size}\n\n"
  
puts "Hash c size form : #{c.size}\n\n"

Output :

Hash a size form : 2

Hash b size form : 3

Hash c size form : 1

Example #2 :




# Ruby code for Hash.size() method
  
# declaring Hash value
a = { "a" => 100, "b" => 200 }
  
# declaring Hash value
b = {"a" => 100}
  
# declaring Hash value
c = {"a" => 100, "c" => 300, "b" => 200}
  
  
# size Value
puts "Hash a size form : #{a.size}\n\n"
  
puts "Hash b size form : #{b.size}\n\n"
  
puts "Hash c size form : #{c.size}\n\n"

Output :

Hash a size form : 2

Hash b size form : 1

Hash c size form : 3




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