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Frontend Developer

What hiring managers usually probe for a frontend role:

  • React fundamentals — hooks, lifecycle, rendering strategies (CSR/SSR/SSG), virtual DOM.
  • Browser performance — reflow vs repaint, memoization, code splitting, lazy loading.
  • Styling and layout — CSS units, flexbox/grid, responsive design, design-system consistency.
  • Testing — unit (Jest, RTL), E2E (Playwright, Cypress), accessibility.
  • Collaboration — working with designers (Figma), QA bug reproduction, code reviews.

What's in this section​

  • Interview Questions — common technical + behavioral questions with sample answers (EN & ID).
  • Quiz — 10 MCQs to self-check.
tip

For frontend interviews specifically, expect a short coding exercise: small component, a state-management puzzle, or a "fix this bug" assignment. The interview-questions page covers the conceptual scaffolding; the quiz hardens recall.