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5 challenges to build your code reading skills

01

What does this function return?

A common JavaScript function used in almost every AI-generated app.

javascript
beginner
02

Spot the async pattern

AI generates this pattern constantly when fetching data from an API.

javascript
beginner
03

Read this React hook

The most common React pattern AI writes for managing component data.

typescript
beginner
04

Trace this array transformation

AI uses this pattern to transform lists of data before displaying them.

typescript
intermediate
05

Read this error message pattern

Understanding how AI structures error responses from a backend API.

typescript
intermediate