Ruby | Hash length() method
Hash#length() : length() is a Hash class method which gives number of key-value pairs in the hash.
Syntax: Hash.length()
Parameter: Hash values
Return: number of key-value pairs in the hash
Example #1 :
# Ruby code for Hash.length() 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 } # length Value puts "Hash a length form : #{a.length}\n\n" puts "Hash b length form : #{b.length}\n\n" puts "Hash c length form : #{c.length}\n\n" |
Output :
Hash a length form : 2 Hash b length form : 3 Hash c length form : 1
Example #2 :
# Ruby code for Hash.length() 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 } # length Value puts "Hash a length form : #{a.length}\n\n" puts "Hash b length form : #{b.length}\n\n" puts "Hash c length form : #{c.length}\n\n" |
Output :
Hash a length form : 2 Hash b length form : 1 Hash c length form : 3