Prototype & Prototype Chain | inheritance in JavaScript

Prototype

Prototype is the approach where a normal object can get inherit another object properties and methods.

const person = {
  greet() {
    console.log("Ram Ram ");
  }
};
const Shyam= Object.create(person);
Shyam.greet();

Here the Shyam will inherit the feature of the Person.

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Prototype Chain

Prototype Chain is the path JavaScript follows to find a property or method when it is not found directly on an object.

const animal = {
  eat() {
    console.log("Eating");
  }
};

const dog = Object.create(animal); 

dog.bark = function () {   //  prototype seperate  branch created 
  console.log("Barking");
};

dog.bark();// here we called that branch 
dog.eat();  //  here we call the upper object prototype 

approach how flow of the prototype chain.

dog
↓
animal
↓
Object.prototype
↓
null // end of the chain .