Guides tagged “vitest-environment”

1 guide

1. Mar 8, 2026·9 min read

   happy-dom vs jsdom (2026): Which Is Faster for Vitest?

   happy-dom runs 2-4x faster than jsdom in Vitest. See real benchmarks, DOM API compatibility gaps, and a migration checklist for switching test environments.

   happy-dom · jsdom · vitest

   

   

   

   +2+3