Question

How to use sub class with extends in JavaScript

Answer 1

<script type="text/JavaScript">   

class Animal { 
  constructor(name) {
    this.name = name;
  }
  
  speak() {
    console.log(this.name + ' animal voice');
  }
}

class Dog extends Animal {
  speak() {
    console.log(this.name + ' dog barks');
  }
}

var d = new Dog('Max');
d.speak();

/*
run:

Max dog barks

*/

</script>

 

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