Qwik

Serialization: Enforce proper use of Qwik&#x27;s resumability model
Visible Tasks: Prevent inappropriate use of useVisibleTask$
Lexical Scope: Ensure proper variable scope in $ functions
Method Usage: Enforce correct Qwik method patterns
React-Specific Props: Disallow React-specific props in Qwik components

The Qwik configuration has Qwik-specific linting rules for serialization, visible tasks, lexical scope, and method usage.

Installation

Add the Qwik configuration to your biome.jsonc:

biome.jsonc

{
  "extends": ["ultracite/core", "ultracite/qwik"]
}

This configuration adds rules specific to Qwik development:

Rule	Setting	Description
`noQwikUseVisibleTask`	`error`	Prevent usage of `useVisibleTask$`. This hook runs code eagerly on the client, defeating Qwik's resumability. Use `useTask$` or `useResource$` instead when possible.
`useQwikClasslist`	`error`	Enforce using `class` object syntax instead of string concatenation for dynamic classes in Qwik.
`useQwikValidLexicalScope`	`error`	Enforce valid lexical scope in Qwik's `$` functions. Variables from outer scopes must be explicitly captured.
`useQwikMethodUsage`	`error`	Enforce correct usage of Qwik-specific methods and APIs.

Rule	Setting	Description
`noReactSpecificProps`	`error`	Disallow React-specific props like `className` and `htmlFor` in Qwik. Use `class` and `for` instead.