23. Proxies Recap

A proxy object sits between a real object and the calling code. The calling code interacts with the proxy instead of the real object. To create a proxy:

• use the new Proxy() constructor
  • pass the object being proxied as the first item
  • the second object is a handler object
• the handler object is made up of 1 of 13 different "traps"
• a trap is a function that will intercept calls to properties let you run code
• if a trap is not defined, the default behavior is sent to the target object

Proxies are a powerful new way to create and manage the interactions between objects.