Ruby | Hash empty? function
Hash#empty?() is a Hash class method which checks whether the Hash array has any key-value pair.
Syntax: Hash.empty?()
Parameter: Hash values
Return: true – if no key value pair otherwise return false
Example #1 :
Ruby
# Ruby code for Hash.empty?() 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 } # empty? Value puts "Hash a empty? form : #{a.empty?()}\n\n" puts "Hash b empty? form : #{b.empty?()}\n\n" puts "Hash c empty? form : #{c.empty?()}\n\n" |
Output :
Hash a empty? form : false Hash b empty? form : false Hash c empty? form : false
Example #2 :
Ruby
# Ruby code for Hash.empty?() method # declaring Hash value a = { "a" => 100 , "b" => 200 } # declaring Hash value b = {} # declaring Hash value c = { "a" => 100 , "c" => 300 , "b" => 200 } # emoty? Value puts "Hash a empty? form : #{a.empty?()}\n\n" puts "Hash b empty? form : #{b.empty?()}\n\n" puts "Hash c empty? form : #{c.empty?()}\n\n" |
Output :
Hash a empty? form : false Hash b empty? form : true Hash c empty? form : false
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