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Idev.d
Idev.d

Posted on Originally published at idev.my

Frontend Engineering 2026: Modern Toolchain with Vite 6 + Vitest + Biome

Vite 6 Innovations

Vite 6 introduces the Environment API, allowing simultaneous management of client and server environments in one project. Rolldown (Rust-based Rollup) as the default bundler delivers 10x faster builds. Module Federation support makes micro-frontend development more convenient.

Vitest Replacing Jest

Vitest shares Vite's configuration, working out of the box. Native ESM, TypeScript, and JSX support without extra transform configuration. Built-in code coverage (c8/istanbul) and UI. Low migration cost: most Jest tests only need import statement changes.

Biome Unified Formatting and Linting

Biome rewrites ESLint and Prettier core functionality in Rust, performing formatting and linting in one tool, 35x faster than ESLint+Prettier. The biome migrate command auto-migrates existing ESLint configurations.


Small team, big output. iDev builds web apps, AI solutions and custom systems with startup speed and enterprise quality. Based in Malaysia, serving Southeast Asia. Free consultation.

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