delete() is an Hash class method which deletes the key-value pair and returns the value from hash whose key is equal to key.
Syntax: Hash.delete()
Parameter: Hash array
Return: value from hash whose key is equal to deleted key.
Example #1:
# Ruby code for delete() method # declaring Hash value a = { "a" => 100, "b" => 200 }
# declaring Hash value b = {"a" => 100}
puts "delete a : #{a.delete("a") }\n\n"
puts "delete b : #{b.delete("a") }\n\n"
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Output :
delete a : 100 delete b : 100
Example #2:
# Ruby code for delete () method # declaring Hash value c = {"a" => 100, "c" => 300, "b" => 200}
puts "delete c : #{c.delete("b") }\n\n"
puts "delete c : #{c.delete("xy"){ |el| "#{el} not found" } }\n\n"
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Output :
delete c : 200 delete c : xy not found