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The Complete Guide to Modern JavaScript

Proxies

Learn how to define custom behaviors for fundamental operations with Proxies.

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What is a Proxy? #

From MDN:

The Proxy object is used to define custom behavior for fundamental operations (e.g. property lookup, assignment, enumeration, function invocation, etc).

 

How to use a Proxy ? #

This is how we create a Proxy:

Javascript (babel-node)
var x = new Proxy(target,handler)
  • our target can be anything, from an object, to a function, to another Proxy
  • a handler is an object which will define the behavior of
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