react-doctor/no-moment

Replace with `import { format } from 'date-fns'` (tree-shakeable) or `import dayjs from 'dayjs'` (2kb)

• Category: Bundle Size
• Severity: warn
• Source: oxlint-plugin-react-doctor
• Framework: global
• Enabled when: always

Validation prompt

Use this to decide whether a fired diagnostic is real or a false positive.

Confirm an ImportDeclaration whose source is exactly "moment" — roughly 300kb of locales plus a mutable Moment object that defeats tree-shaking. The rule does not flag moment-timezone, moment-duration-format, or dayjs/plugin/moment; it targets only the core package import.

Fix prompt

Use this once validation confirms the diagnostic is real.

Migrate to a tree-shakeable alternative — date-fns for functional, immutable APIs (import { format } from "date-fns") or dayjs (~2kb gzipped) for a near-drop-in moment-compatible chainable API. Both expose locale and timezone packages on demand. See https://momentjs.com/docs/#/-project-status/

Related rules

More Bundle Size rules from the rules reference:

• react-doctor/no-undeferred-third-party: Use `next/script` with `strategy="lazyOnload"` or add the `defer` attribute
• react-doctor/prefer-dynamic-import: Use `const Component = dynamic(() => import('library'), { ssr: false })` from next/dynamic or React.lazy()
• react-doctor/use-lazy-motion: Use `import { LazyMotion, m } from "framer-motion"` with `domAnimation` features — saves ~30kb
• react-doctor/no-barrel-import: Import from the direct path: `import { Button } from './components/Button'` instead of `./components`
• react-doctor/no-dynamic-import-path: Use a string-literal path: `import('./feature/heavy.js')` so the bundler can split this chunk