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
The JavaScript Reflect.defineProperty() adds or modifies a property of an object. It is the same as Object.defineProperty() but it returns a Boolean. Syntax: Reflect.defineProperty(target, propertyKey, attributes) Parameters: target: It represents the object that has to be invoked. propertyKey: It represents the name of the property to be defined or modified. attributes: It represents attributes for … Read more
The JavaScript Reflect.construct() method invokes a constructor with a variable number of arguments. It also provides the option to set a different prototype. Syntax: Reflect.construct(target, argumentsList[, newTarget]) Parameters: target: It represents the object that has to be invoked. argumentsList: It represents the parameters for the function. newTarget: It represents the constructor whose prototype should be … Read more
The JavaScript Reflect.apply() method calls a function using the specified argument. Note: If the target function is not callable then it will throw TypeError. Syntax: Reflect.apply(target, thisArg, arguments) Parameters: target: It represents the object that has to be invoked. thisArg: It will act as this keyword for the function. arguments: It represents the parameters for … Read more
There are various methods that the JavaScript Reflect object facilitates. JavaScript Reflect Methods: apply() Method: Use: To call a function using the specified argument. construct() Method: Use: To invoke a constructor with a variable number of arguments. defineProperty() Method: Use: To add or modify a property of an object. deleteProperty() Method: Use: To delete a … Read more