Ruby | Hash each_pair() function
Hash#each_pair() is a Hash class method which finds the nested value which calls block once for each pair in hash by passing the key_value pair as parameters.
Syntax: Hash.each_pair()
Parameter: Hash values
Return: calls block once for key_value pair in hash with key_value pair as parameter otherwise Enumerator if no argument is passed.
Example #1 :
# Ruby code for Hash.each_pair() 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 } # each Value puts "Hash a each_pair form : #{a.each_pair()}\n\n" puts "Hash b each_pair form : #{b.each_pair {|key| puts " #{key} "}}\n\n" puts "Hash c each_pair form : #{c.each_pair {|value| puts " #{value} "}}\n\n" |
Output :
Hash a each_pair form : # [:a, 100] [:c, 300] [:b, 200] Hash b each_pair form : {:a=>100, :c=>300, :b=>200} [:a, 100] Hash c each_pair form : {:a=>100}
Example #2 :
# Ruby code for Hash.each_pair() 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 } # each Value puts "Hash a each_pair form : #{a.each_pair()}\n\n" puts "Hash b each_pair form : #{b.each_pair {|key| puts " #{key} "}}\n\n" puts "Hash c each_pair form : #{c.each_pair {|value| puts " #{value} "}}\n\n" |
Output :
Hash a each_pair form : # ["a", 100] Hash b each_pair form : {"a"=>100} ["a", 100] ["c", 300] ["b", 200] Hash c each_pair form : {"a"=>100, "c"=>300, "b"=>200}
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