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"
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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"
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Output :
Hash a size form : 2 Hash b size form : 1 Hash c size form : 3