The JavaScript Reflect.setPrototypeOf() method sets the prototype of an object to another object. It is similar to Object.setPrototypeOf(). Syntax: Reflect.setPrototypeOf(target, prototype) Parameters: target: It represents the object whose prototype has to be set. prototype: It represents the object’s new prototype. Return: It returns true if the object’s new prototype is set successfully otherwise, it returns … Read more
The JavaScript Reflect.set() method sets the value of the property of an object. Syntax: Reflect.set(target, propertyKey, value[, receiver]) Parameters: target: It represents the object on which to set the property. propertyKey: It represents the name of the property to set. value: It represents the value of the set corresponding to the specified property. receiver: It … Read more
The JavaScript Reflect.preventExtensions() method prevents any future extensions to an object i.e. prevents addition and modification of properties. It is It is similar to Object.preventExtensions(). Syntax: Reflect.preventExtensions(target) Parameters: target: It represents the object that prevents extensions. Return: It returns true if the target object was successfully set to prevent extensions otherwise returns false. Note: It … Read more
The JavaScript Reflect.ownKeys() method gives an array whose values represent the keys of the properties of an object. It includes only the object’s direct properties. Syntax: Reflect.ownKeys(target) Parameters: target: It represents the object from which to get the own keys. Return: It returns an array of the target object’s own property keys. Note: It throws … Read more
The JavaScript Reflect.isExtensible() method determines if an object is extensible or not. It is similar to Object.isExtensible(). Syntax: Reflect.isExtensible(obj) Parameters: target: It represents the object which to check if it is extensible. Return: It returns true if the object is extensible otherwise returns false. Note: It throws TypeError, if the target is not an Object. … Read more
The JavaScript Reflect.has() method determines if a property exists in an object. It is similar to in operator as a function. Syntax: Reflect.has(target, propertyKey) Parameters: target: It represents the object on which the property existing checks have to be performed. propertyKey: It represents the name of the property to check. Return: It returns true if … Read more
The JavaScript Reflect.getPrototypeOf() method gives the prototype of an object. It is similar to the Object.getPrototypeOf(). Syntax: Reflect.getPrototypeOf(target) Parameters: target: It represents the object whose prototype has to be obtained. Return: Prototype of the specified object. Note: It will throw a TypeError if the target is not an Object. Example 1: <!DOCTYPE html> <html> <body> … Read more
The JavaScript Reflect.getOwnPropertyDescriptor() method returns the descriptor of the property of an object. It is similar to Object.getOwnPropertyDescriptor(). Syntax: Reflect.getOwnPropertyDescriptor(target, propertyKey) Parameters: target: It represents the object in which to look for the property. propertyKey: It represents the name of the property whose descriptor has to be fetched. Return: It returns the descriptor of the … Read more
The JavaScript Reflect.get() method gives the property of an object as a function. Syntax: Reflect.get(target, propertyKey[, receiver]) Parameters: target: It represents the object whose property have to be get. propertyKey: It represents the name of the property to be get. receiver: It represents the value of this provided for the call to object if a … Read more
The JavaScript Reflect.deleteProperty() method deletes a property of an object. Syntax: Reflect.deleteProperty(target, propertyKey) Parameters: target: It represents the object whose property have to be deleted. propertyKey: It represents the name of the property to be deleted. Return: It returns true if the specified property is successfully deleted otherwise, it returns false. Example 1: <!DOCTYPE … Read more