Objects, Prototypes and Classes in JavaScript

index.js

// -----------------------------------------------------------------------------
// Objects
// -----------------------------------------------------------------------------

// const Reptile = function(name, canItSwim) {
//   this.name = name;
//   this.canItSwim = canItSwim;
// };

// Reptile.prototype.doesItDrown = function() {
//   if (this.canItSwim) console.log(`${this.name} can swim`);
//   else console.log(`${this.name} has drowned`);
// };

// const alligator = new Reptile('alligator', true);
// const croc = new Reptile('croc', false);

// alligator.doesItDrown();
// croc.doesItDrown();

// -----------------------------------------------------------------------------
// Prototypes
// -----------------------------------------------------------------------------

// croc.__proto__.doesItDrown = function() {
//   console.log(`the croc never drowns`);
// };

// alligator.doesItDrown();
// croc.doesItDrown();

// -----------------------------------------------------------------------------
// Classes
// -----------------------------------------------------------------------------

class Reptile {
  constructor(name, canItSwim) {
    this.name = name;
    this.canItSwim = canItSwim;
  };

  doesItDrown() {
    if (this.canItSwim) console.log(`${this.name} can swim`);
    else console.log(`${this.name} has drowned`);
  };
};

const alligator = new Reptile('alligator', true);
const croc = new Reptile('croc', false);

alligator.doesItDrown();
croc.doesItDrown();