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Mahdhir/ducktype-TS-example.ts

Created January 31, 2021 16:36
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  1. Mahdhir created this gist Jan 31, 2021.
    71 changes: 71 additions & 0 deletions ducktype-TS-example.ts
    View file
    Original file line number Diff line number Diff line change
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    interface IDuck{
    walk():void;
    quack():void;
    }

    class Duck implements IDuck{
    walk():void {
    console.log("Duck walk");
    }

    quack():void {
    console.log("Duck quack");
    }

    toString():String{
    return "I am a duck who walks and quacks";
    }
    }


    interface IPelican{
    walk():void;
    quack():void;
    dive():void;
    }


    class Pelican implements IPelican{
    walk():void {
    console.log("Pelican walk");
    }

    quack():void {
    console.log("Pelican quack");
    }

    dive():void {
    console.log("Pelican dive");
    }


    toString():String{
    return "I am a pelican who walks, quacks and dives";
    }
    }

    class Platypus {
    walk():void {
    console.log("Platypus walk");
    }

    growl():void {
    console.log("Platypus growl");
    }

    toString():String{
    return "I am a platypus who walks and growls";
    }
    }

    function print(duck:IDuck){
    console.log("Input is a duck\n" + duck.toString());
    }

    let duck = new Duck();
    let pelican = new Pelican();
    let platypus = new Platypus();

    print(duck);
    print(pelican);
    print(platypus);