Created
May 12, 2015 09:14
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| type Duck () = | |
| member this.sayQuack = printfn "quack, quack..." | |
| type Bird () = | |
| member this.sayQuack = printfn "tweet, tweet..." | |
| type Dog () = | |
| member this.bark = printfn "woof, woof..." | |
| let duck = Duck() | |
| let bird = Bird() | |
| let dog = Dog() | |
| duck.sayQuack | |
| bird.sayQuack | |
| dog.bark | |
| // dog.sayQuack (* VS would underline error in red: 'sayQuack' is not defined. *) | |
| (* output: | |
| quack, quack... | |
| tweet, tweet... | |
| woof, woof... | |
| val it : unit = () | |
| *) |
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