Javascript Inheritance

home page

put image here or so and whats

This Page covers

Inheritance
  • (...i forgot), then
  • classe inheritance thing i forgot
  • and something else

Here is example code to fix format of

class Dog {
    bark(){
        return 'barking'
    }
}
const fido = new Dog()
fido
  • fido doesn't have a bark method directly on it.
  • Instead, fido.__proto__ (or Object.getPrototypeOf(fido)) points to Dog.prototype, where bark lives.
  • So fido.bark() works because JavaScript looks up the prototype chain and finds it there.

⛓️ Think of It Like a Chain When you call a method on an object:

  • JS looks on the object itself.
  • If it doesn't find it, it goes to the object's prototype.
  • If still not found, it keeps going up the chain until it hits null.

So you're not seeing methods directly on instances because they're not there — they're on the prototype.

We use promises when we need to wait for information or data