Description: The ‘Object.prototype.isPrototypeOf’ method is a function in JavaScript that allows determining whether an object exists in the prototype chain of another object. This means it can check if an object is part of another’s prototype hierarchy, which is fundamental for understanding inheritance in JavaScript. Prototypal inheritance is a key concept in this language, where objects can inherit properties and methods from other objects through their prototype. This method returns a boolean value: ‘true’ if the object in question is found in the prototype chain of the object being examined, and ‘false’ otherwise. Its use is essential for object manipulation and for implementing design patterns that rely on inheritance. Additionally, ‘isPrototypeOf’ is a useful tool for debugging and analyzing complex object structures, allowing developers to better understand how different objects relate to each other in a JavaScript application.