defineProperty()

JavaScript Object.preventExtensions() Method The Object.preventExtensions() only prevents the addition of new properties from ever being added to an object (i.e., prevents future…

JavaScript Object.entries() Method JavaScript Object.entries() method is used to return an array of a given object’s own enumerable property [key, value] pairs.…

JavaScript Object.freeze() Method The Object.freeze() method freezes an object that prevents new properties from being added to it. This method prevents the…

JavaScript Object.getOwnPropertyDescriptor() Method The Object.getOwnPropertyDescriptor method allows to query the full information about a property and returns a property descriptor for an…

JavaScript Object.getOwnPropertyDescriptors() Method The Object.getOwnPropertyDescriptors() method returns all own property descriptors of a given object. The difference between getOwnPropertyDescriptors() and getOwnPropertyDescriptor() method…

JavaScript Object.getOwnPropertyNames() Method The Object.getOwnPropertyNames() method returns an array of all properties (except those non-enumerable properties which use symbol) found directly upon…

JavaScript Object.getOwnPropertySymbols() Method The Object.getOwnPropertySymbols() method returns an array of all symbol properties found directly upon a given object. This method returns…

JavaScript Object.getPrototypeOf() Method The Object.getPrototypeOf() method of JavaScript returns the prototype (i.e. the value of the internal [[Prototype]] property) of the specified…

JavaScript Object.is() Method The Object.is() method of JavaScript is used to determine whether two values are the same value. There is a…

JavaScript Object.seal() Method The Object.seal() method of JavaScript seals an object which prevents new properties from being added to it and marks…