<!DOCTYPE html>
<html>
<head>
<title>JavaScript Code Testing</title>
</head>
<body>
<p id = "demo">Inheritance Test</p>
<script>
class Car{
constructor(brand){
this.carname = brand;
}
present(){
return "I have " + this.carname;
}
}
class Model extends Car{
constructor(brand, mod){
super(brand);
this.model = mod;
}
show(){
return this.present() + " and the model is " + this.model + ".";
}
}
var myCar = new Model("Tesla", "2021");
document.getElementById("demo").innerHTML = myCar.show();
</script>
</body>
</html>
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