Learn JavaScript frameworks with interactive challenges
Dive into React, Next.js and more. Write code, run tests, and watch your progress in real time.
Terminalpnpm test > frameground@1.0.0 test > vitest run
PASS./index.test.jsRenders Button✓Renders Button(5ms)✓Disabled when no user(5ms)✓Updates counter (5ms)Test Suites:1 passed,1 totalTests:3 passed,3 totalSnapshots:0 totalTime:1s, estimated 2sRan all test suites.