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← React.js

React.js — Practice Test 3

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Exam simulation rules

  • Opens in fullscreen focus mode
  • Visible countdown — exam auto-submits at 0:00
  • Do not switch tabs or minimize this window
  • A second tab switch will submit your attempt

Free plan: answer questions 1–20; the rest are visible but locked. No saved history or explanations. Upgrade

01Navigate freely between questions
02Flag questions to review later
03Timer counts down from 90 minutes, then auto-submit
04Stay on this tab — switching away may submit your exam
05Results shown once — upgrade to save history

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Structured for exam day and portfolio proof — timed tests, guided builds, and quick reps on one platform.