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Algorithms 1 Computer Systems 1 Data Structures 8 JavaScript 80 Programming Languages 46 React Native 38
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Medium
26

Explain the Internationalization API (Intl)

JavaScript
Hard
27

What is a MutationObserver?

JavaScript
Medium
28

Explain BigInt usage

JavaScript
Medium
26

What are Promise combinators (allSettled/any)?

JavaScript
Medium
25

How to use Object.fromEntries?

JavaScript
Medium
23

Explain flatMap() array method

JavaScript
Medium
25

What are Private Class Fields?

JavaScript
Hard
27

Explain Server-Sent Events (SSE)

JavaScript
Hard
27

What is Tree Shaking?

JavaScript
Hard
25

Explain Web Crypto API

JavaScript
Medium
22

What is Top-Level Await?

JavaScript
Hard
29

Explain the Atomics API

JavaScript
Hard
27

What are Decorators?

JavaScript
Hard
24

Explain WebAssembly integration

JavaScript
Hard
24

What is the Temporal API and why is it needed?

JavaScript
Medium
24

Explain the Array.prototype.groupBy proposal

JavaScript
Medium
21

What is error chaining with 'cause'?

JavaScript
Hard
21

How do Import Maps work?

JavaScript
Hard
23

Explain the Record & Tuple proposal

JavaScript
Medium
22

What is the Pipeline Operator (|>)?

JavaScript