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gemini-nexus/.agent/skills/vercel-react-best-practices/rules/bundle-preload.md
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AngeloooooandDraculabo 8ed4593f73 Refactor Gemini model display: filter old versions, group low/high pкo, and improve naming (#114)
* Refactor Gemini model display: filter old versions, group low/high pro, and improve naming

* Fix potential negative minutes and refine Gemini 3 Pro grouping logic based on PR feedback

* The account change process has been sped up

* Address PR review: enhance error message and parameterize polling interval in process handler

* Address PR review: fix potential race condition in database backup logic

* fix: prevent renderer white screen and harden sentry gating

* feat:  localize model labels

* chore: enable hoisted node-linker

* chore: ignore .agent/.claude/.codex in prettier

---------

Co-authored-by: Draculabo <[email protected]>
2026-02-19 19:37:30 +08:00

1.1 KiB

title, impact, impactDescription, tags
title impact impactDescription tags
Preload Based on User Intent MEDIUM reduces perceived latency bundle, preload, user-intent, hover

Preload Based on User Intent

Preload heavy bundles before they're needed to reduce perceived latency.

Example (preload on hover/focus):

function EditorButton({ onClick }: { onClick: () => void }) {
  const preload = () => {
    if (typeof window !== 'undefined') {
      void import('./monaco-editor');
    }
  };

  return (
    <button onMouseEnter={preload} onFocus={preload} onClick={onClick}>
      Open Editor
    </button>
  );
}

Example (preload when feature flag is enabled):

function FlagsProvider({ children, flags }: Props) {
  useEffect(() => {
    if (flags.editorEnabled && typeof window !== 'undefined') {
      void import('./monaco-editor').then((mod) => mod.init());
    }
  }, [flags.editorEnabled]);

  return <FlagsContext.Provider value={flags}>{children}</FlagsContext.Provider>;
}

The typeof window !== 'undefined' check prevents bundling preloaded modules for SSR, optimizing server bundle size and build speed.