handler.setPrototypeOf()

The handler.setPrototypeOf() method is a trap for the [[SetPrototypeOf]] object internal method, which is used by operations such as Object.setPrototypeOf().

Return value: The setPrototypeOf() method must return a Boolean indicating whether or not the prototype was successfully changed. Other values are coerced to booleans.

Return value: Many operations, including Object.setPrototypeOf(), throw a TypeError if the [[SetPrototypeOf]] internal method returns false.

Parameters: The following parameters are passed to the setPrototypeOf() method. this is bound to the handler.

Parameters: target The target object. prototype The object’s new prototype or null.

Syntax example: new Proxy(target, {