Skip to main content
Version: 3.13.0

Reflect.defineProperty()

The static Reflect.defineProperty() method is like Object.defineProperty() but returns a Boolean.

Syntax​

Reflect.defineProperty(target, propertyKey, attributes)

Parameters​

  • target
    • : The target object on which to define the property.
  • propertyKey
    • : The name of the property to be defined or modified.
  • attributes
    • : The attributes for the property being defined or modified.

Return value​

A Boolean indicating whether or not the property was successfully defined.

Exceptions​

A TypeError, if target is not an Object.

Description​

The Reflect.defineProperty method allows precise addition to or modification of a property on an object. For more details, see the Object.defineProperty which is similar.

Note: Object.defineProperty returns the object or throws a TypeError if the property has not been successfully defined. Reflect.defineProperty, however, returns a Boolean indicating whether or not the property was successfully defined.