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 :
a = {a:100, b:200}
b = {a:100, c:300, b:200}
c = {a:100}
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 :
a = { "a" => 100, "b" => 200 }
b = {"a" => 100}
c = {"a" => 100, "c" => 300, "b" => 200}
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
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Last Updated :
07 Jan, 2020
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