rendering-hoist-jsx

Development

Extract static JSX elements outside components to avoid re-creation on every render. Apply when rendering static elements repeatedly or in lists.

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Source SKILL.md: https://github.com/TheOrcDev/8bitcn-ui/blob/HEAD/.claude/skills/rendering-hoist-jsx/SKILL.md

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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.