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  1. function World() {}
  2. World.prototype.hello = function () { console.log("Hello World") }
  3.  
  4. function Greeter(name) { this.name = name }
  5. Greeter.prototype.hello = function () { console.log("Hello " + this.name + "!") }
  6.  
  7. var world = new World()
  8. var greeter = new Greeter("Programowanie Obiektowe")
  9.  
  10. world.hello()
  11. greeter.hello()
Success #stdin #stdout 0.08s 122240KB
stdin
Standard input is empty
stdout
Hello World
Hello Programowanie Obiektowe!