Bundle size jump

[ifiokjr]

Since the update (#20) to the new version the bundle size has increased from 7.5 kB -> 11.1 kB. There may be nothing that can be done, but I was wondering how to address it since the default prop-types library comes in at 532 B.

I'm thinking it may be to do with the way their index file is structured to use shims when in production.

[gcanti]

This is weird, in their view io-ts went from 7.9kB to 4.7kB by switching to fp-ts@2.x, where the jump in prop-types-ts comes from?

[ifiokjr]

I think I see why.

Because io-ts switched to using fp-ts as a peer dependency it's bundle size dropped and because I added fp-ts as a direct dependency while upgrading the package file size has increased.

[gcanti]

Here's the numbers from https://bundlephobia.com

library	minified
fp-ts@2.4.0	123.8
io-ts@2.0.4	18.8
prop-types-ts@0.7.0	55.1

But then in the Composition section (from https://bundlephobia.com/result?p=prop-types-ts@0.7.0), says

io-ts: ~35.05 (io-ts code + fp-ts/lib/Either?)
fp-ts: ~17.14 (fp-ts/lib/Either module?)
self: ~2.92

Does it count the fp-ts/lib/Either module twice?

io-ts: ~35.05 = io-ts code: ~18.8 + fp-ts/lib/Either: ~17.14