Replace lodash with es-toolkit

[dayongkr]

Replace lodash with es-toolkit for reduced bundle size

Summary

This PR replaces lodash.debounce dependency in babel-helper-define-polyfill-provider and lodash in build scripts with es-toolkit, achieving significant bundle size reduction while maintaining full compatibility.

Changes

• babel-helper-define-polyfill-provider: Replaced lodash.debounce with es-toolkit/debounce
• Build scripts: Replaced lodash with es-toolkit

Benefits

• Bundle size reduction: debounce function code reduced from 378 lines to 110 lines (~3x smaller)
• Cleaner implementation: es-toolkit removes unnecessary utilities like toNumber, isSymbol, etc., keeping only the essential logic needed for most use cases
• Zero breaking changes: Build output diff shows identical results except for the migration itself
• Full compatibility: es-toolkit/compat passes all lodash test cases and maintains 100% interface compatibility
• Industry adoption: Already used by major projects like Storybook and Recharts

Performance Impact

While debounce functions don't typically have significant performance implications, the substantial bundle size reduction (3x smaller) provides clear value for end users.

Testing

• ✅ All existing tests pass

• ✅ Build output verification shows identical results

  • 

• ✅ es-toolkit/compat compatibility confirmed through lodash test suite

Migration Details

The migration maintains the exact same API surface, ensuring this is a drop-in replacement with no changes required for consumers of this package.

[nicolo-ribaudo]

Which Node.js versions does es-tooklit support?

[nicolo-ribaudo]

Also sorry, but the es-toolkit npm package is 35x larger than the lodash.debounce (lodash is just a devDependency, so it doesn't really count):

• https://bundlephobia.com/package/[email protected]
• https://bundlephobia.com/package/[email protected]

[nicolo-ribaudo]

This should be a devDependency

[dayongkr]

Thanks for catching this!

[dayongkr]

Also sorry, but the es-toolkit npm package is 35x larger than the lodash.debounce (lodash is just a devDependency, so it doesn't really count):

• https://bundlephobia.com/package/[email protected]
• https://bundlephobia.com/package/[email protected]

While it's true that downloads would increase, since you can import only the functions(files) you need, the actual build output will be smaller than before.

[dayongkr]

For now, es-toolkit targets Node LTS versions, but I haven't measured the lodash compatibility layer like es-toolkit/compat.

I'll look this part, align it with simillar specs as lodash, and share the results through this PR again!

[nicolo-ribaudo]

Note that these packages are used by Babel, which targets Node.js 6+. If it's not supported, we can revisit in a couple months after the Babel 8 stable release.