Challenge 1
Create a proxy.
javascript
Your answer
const proxy = new (target, handler);Press Ctrl⌘Enter to check your answer
Code Completion
8 Challenges
Complete the Proxy and Reflect code
Practice creating proxies and forwarding intercepted operations with Reflect.
Intermediate
~8 min read
Challenge 2
Forward a property read.
javascript
Your answer
return (target, property, receiver);Press Ctrl⌘Enter to check your answer
Challenge 3
Forward a property write.
javascript
Your answer
return (target, property, value, receiver);Press Ctrl⌘Enter to check your answer
Challenge 4
Forward an existence check.
javascript
Your answer
return (target, property);Press Ctrl⌘Enter to check your answer
Challenge 5
Forward deletion.
javascript
Your answer
return (target, property);Press Ctrl⌘Enter to check your answer
Challenge 6
Return all own keys.
javascript
Your answer
return (target);Press Ctrl⌘Enter to check your answer
Challenge 7
Forward property definition.
javascript
Your answer
return (target, property, descriptor);Press Ctrl⌘Enter to check your answer
Challenge 8
Forward a function call.
javascript
Your answer
return (target, thisArg, args);Press Ctrl⌘Enter to check your answer