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30 JavaScript Interview Questions for Developers (Explained Simply)
개발자를 위한 JavaScript 면접 질문 30선 (쉽게 설명)
Why it matters
This article presents 30 common JavaScript interview questions with simple explanations, covering fundamentals, functions, advanced concepts, browser storage, OOP, and modern JS. It highlights JavaScript's dominance in 2026—used by 66% of developers, powering 16.5 million developers worldwide—and notes key ecosystem trends like TypeScript's rise, ECMAScript 2025/2026 features, and mature frameworks.
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