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Guides tagged “jest”

12 guides

  1. 15 min read

    Vitest vs Jest: Speed Benchmarks 2026

    Vitest vs Jest 2026: benchmark results across 10 real-world repos. Vitest is 3-8x faster on Vite projects. See full feature matrix and migration guide.

    vitest · jest · testing

  2. 12 min read

    Vitest 3 vs Jest 30: Testing in 2026

    Vitest 3 and Jest 30 compared: speed benchmarks, configuration, TypeScript support, browser mode, and a step-by-step migration guide for 2026 projects.

    vitest · jest · testing

  3. 17 min read

    Bun Test vs Vitest vs Jest Benchmarks 2026

    Bun test vs Vitest vs Jest benchmark guide for 2026: speed tradeoffs, npm adoption, coverage, TypeScript support, migration caveats, and which runner to choose.

    bun · vitest · jest

  4. 9 min read

    happy-dom vs jsdom vs linkedom 2026

    Compare happy-dom, jsdom, and linkedom for DOM simulation in JavaScript testing 2026. Speed benchmarks, compatibility, Vitest defaults, and when to use each.

    testing · javascript · vitest

  5. 18 min read

    node:test vs Vitest vs Jest 2026

    Node.js 20+ ships a built-in test runner. Is node:test ready to replace Vitest and Jest? Compare maturity, performance, features, and developer experience in.

    testing · nodejs · vitest

  6. 14 min read

    The Consolidation of JavaScript Testing: How 2026

    Vitest surpassed Jest for new projects in 2025. The data behind the shift, why Vite config sharing won, and what this consolidation means for testing.

    vitest · jest · testing

  7. 12 min read

    How to Migrate from Jest to Vitest in 2026

    Step-by-step guide to migrating your Jest test suite to Vitest in 2026. Config changes, API differences, and the gotchas that trip up most migrations.

    vitest · jest · testing

  8. 16 min read

    The State of JavaScript Testing in 2026

    Vitest, Playwright, and Testing Library dominate JavaScript testing in 2026. Download trends, adoption patterns, and the tools developers actually choose.

    vitest · playwright · testing-library

  9. 16 min read

    Vitest + Jest + Playwright: Full Testing Stack 2026

    The complete JavaScript testing stack in 2026: Vitest for unit testing, Playwright for E2E, Testing Library for React. Setup, config, and when to use each.

    vitest · jest · playwright

  10. 9 min read

    Vitest vs Jest in 2026: Has Vitest Won?

    Vitest has taken the JavaScript testing world by storm. With Jest still at 20M+ weekly downloads, is the old guard still relevant? A data-driven comparison.

    vitest · jest · testing

  11. 11 min read

    Testing Compared: Vitest vs Jest vs Playwright 2026

    Vitest, Jest, and Playwright: JavaScript testing tools compared — unit, integration, and E2E. Performance benchmarks, features, and when to use each Updated.

    testing · vitest · jest

  12. 9 min read

    Best JavaScript Testing Frameworks Compared (2026)

    Jest, Vitest, Playwright, and Cypress: JavaScript testing frameworks compared with real npm data. Which to use in 2026 and when Compare pricing and use cases.

    testing · javascript · vitest

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