Revert Index.js to use ES5 code to avoid uglification errors

[ChuckkNorris]

Currently, the index.js uses ES6 code which will cause a production build error for apps created using Create-React-App which does not support uglification of all ES6 code, particularly arrow functions.

Considering we don't actually gain anything from using arrow functions inside the index.js file, I propose we convert the arrow functions to ES5 functions.

I have tested the commit which resolves the uglification error.

[masaakim]

@ChuckkNorris There are a lot of libraries written by ES6 or later. If we create apps that depends on libraries written by ES6 with create-react-app, we cannot uglify the code, right?

[ChuckkNorris]

It's not all ES6 code, it just doesn't handle the arrow functions correctly.

Either way, the proposed solution is to either unmount our create-react-app app, which prevents further version upgrades, remove your library as a dependency, continue manually modifying the file to ES5, or publish my own fork to NPM.

However, we really like your library, so if we could update it so we didn't have to modify it, that'd be ideal.

Please see issue:
facebook/create-react-app#1125

No, this is not supported because builds will get much slower. We don't recommend using libraries that don't precompile their code to ES5 but are supposed to be usable in ES5.

[masaakim]

OK 👍 FYI, It will support in create-react-app v2. facebook/create-react-app#3776

[masaakim]

I just published v1.0.1 :)

[ChuckkNorris]

Awesome! Thanks, @morishitter!