lobehub/.agents/skills/vercel-react-best-practices/rules/rendering-hoist-jsx.md
Innei fcdaf9d814 🔧 chore: update eslint v2 configuration and suppressions (#12133)
* v2 init

* chore: update eslint suppressions and package dependencies

- Removed several eslint suppressions related to array sorting and reversing from eslint-suppressions.json to clean up the configuration.
- Updated @lobehub/lint package version from 2.0.0-beta.6 to 2.0.0-beta.7 in package.json for improvements and bug fixes.
- Made minor formatting adjustments in vitest.config.mts and various SKILL.md files for better readability and consistency.

Signed-off-by: Innei <tukon479@gmail.com>

* fix: clean up import statements and formatting

- Removed unnecessary whitespace in replaceComponentImports.ts for improved readability.
- Standardized import statements in contextEngineering.ts and createAgentExecutors.ts by adding missing spaces for consistency.

Signed-off-by: Innei <tukon479@gmail.com>

* chore: update eslint suppressions and clean up code formatting

* 🐛 fix: use vi.hoisted for mock variable initialization

Fix TDZ error in persona service test by using vi.hoisted() to ensure
mock variables are available when vi.mock factory runs.

---------

Signed-off-by: Innei <tukon479@gmail.com>
2026-02-11 13:04:48 +08:00

993 B

title impact impactDescription tags
Hoist Static JSX Elements LOW avoids re-creation rendering, jsx, static, optimization

Hoist Static JSX Elements

Extract static JSX outside components to avoid re-creation.

Incorrect (recreates element every render):

function LoadingSkeleton() {
  return <div className="animate-pulse h-20 bg-gray-200" />;
}

function Container() {
  return <div>{loading && <LoadingSkeleton />}</div>;
}

Correct (reuses same element):

const loadingSkeleton = <div className="animate-pulse h-20 bg-gray-200" />;

function Container() {
  return <div>{loading && loadingSkeleton}</div>;
}

This is especially helpful for large and static SVG nodes, which can be expensive to recreate on every render.

Note: If your project has React Compiler enabled, the compiler automatically hoists static JSX elements and optimizes component re-renders, making manual hoisting unnecessary.