Don't transpile to es5

[MonstraG]

🚀 Feature Proposal

We are in 2023, and maybe we can try targeting es6 (especially because this package dropped support for IE in 3 years ago).

This can be easily done by adding

{
  "browserslist": [
    "defaults"
  ]
}

Motivation

I'm using i18next in several applications (trough next-i18next), and often, i18next is a single biggest dependency I have at 100kb (non-minified).

defaults of browserlists targets es6, and this single change drops esm build size down to 81kb. (approx. -20%)

Example

Smaller builds, faster loads worldwide.

[adrai]

we'll evaluate that for the next major

[gunjam]

I only use i18next serverside in a nodejs application so I'm less concerned about package size, but I would also like a way in require() a non-babeled version of i18next. Babel has introduced a lot of es6 polyfils into the package which have a big performance impact, the i18next object spread polyfil is the hottest code path in my whole application, replacing the npm installed package with a non-babled version of the library increaed my requests per second by 10%!

[adrai]

prepared for next major version