Answer to Question #223927 in HTML/JavaScript Web Application for Sajid

Question

Submarine
Given two numbers totalTorpedos, torpedosFired as inputs, write a super class Submarine with property and methods as below,
Property Description
isSubmerged It should contain a boolean value to indicate whether the submarine is submerged or not.
Method Description
dive When this method is called, it should set the value of isSubmerged to true and log "Submarine Submerged" text in the console.
surface When this method is called, it should set the value of isSubmerged to false and log "Submarine Surfaced" text in the console.
Add a sub class weaponUnit which extends to Submarine with the below properties and methods,

Answer 1

class Submarine{
      isSubmerged = true;
      constructor(totalTorpedos, torpedosFired){
            this.totalTorpedos = totalTorpedos;
            this.torpedosFired = torpedosFired;
      }
      
      fireTorpedo(){
            console.log(`${this.torpedosFired} torpedos fired,${this.totalTorpedos - this.torpedosFired} torpedos left`);
            this.isSubmerged = false;
      }
      checkSubmerge(){
            if(this.isSubmerged === true){
                  console.log("Submarine Submerged");
            }else{
                  console.log("Submarine Resurface");
            }
      }
      submerge(){
            this.checkSubmerge();
            this.fireTorpedo();
            this.checkSubmerge();
      }
}
const submarine = new Submarine(10,2); 
submarine.submerge();