Turbo-Charge Your Skills with the TJR Bootcamp Challenge 2026 – Get Ready to Rise!

Prototypal inheritance is about linking objects so one can read properties from another through a prototype chain. Using Object.create(proto) makes a new object whose internal prototype is the object you pass in, so the new object automatically inherits properties and methods from that object without running a constructor. This is the direct way to establish inheritance between two objects in JavaScript. For example, const parent = { sayHi() { console.log('hi'); } }; const child = Object.create(parent); child.sayHi(); // inherited from parent

Other common operations don’t create such a link. Pushing onto an array just adds an element to that array. Math.random returns a primitive number, not an object with inheritance. JSON.parse turns text into a plain object or array with its default prototype, and it doesn’t establish inheritance from another object unless you manually adjust its prototype after parsing.