Add untranspiled build and typescript support

[sbarfurth]

Description

This pull request adds a single build that completely untranspiled called v8n.esm.browser.js. This build can be used for modern browsers where backward compatibility is no needed. It also adds typescript typings that allow usage of this package in a typescript environment.

Fixes #165
Fixes #28
Fixes #180

Type of change

• New feature (non-breaking change which adds functionality)

Checklist:

• I have created my branch from a recent version of master
• The code is clean and easy to understand
• I have added changes to the Unreleased section of the CHANGELOG

[sbarfurth]

This pull request also changes the way prettier is applied to be in line with what is recommended. This means removing the plugin that runs prettier through eslint. Instead the config is used, meaning that formatting rules are disabled for eslint and left to prettier. The pre-commit hook was changed accordingly.

I've also added a .prettierrc that might be subject of discussion.

[imbrn]

Hey @brfrth, I liked these changes very much, mostly the prettier ones. I made just a comment that is very important about the generated files names.

[sbarfurth]

@imbrn what's the current list of generated names for all builds?

[imbrn]

@brfrth

These are the file names generated by the build:

v8n.amd.js
v8n.browser.js (iife)
v8n.browser.min.js (iife minified)
v8n.cjs.js
v8n.esm.js
v8n.min.js (umd minified)
v8n.system.js
v8n.umd.js

the map files:

v8n.browser.min.js.map
v8n.min.js.map

and in the package.json file you can see which ones are used by our CDNs:

v8n/package.json

Lines 5 to 8 in 8b2e7c7

	"main": "./dist/v8n.cjs.js",
	"module": "./dist/v8n.esm.js",
	"jsdelivr": "./dist/v8n.min.js",
	"unpkg": "./dist/v8n.min.js",

[sbarfurth]

@imbrn fixed

[imbrn]

@brfrth Please check the comments out.

[sbarfurth]

I fixed the stuff you reviewed. I also went ahead and updated all the npm packages used, since quite a few of them were outdated. In the process I was able to reduce the usage of babel by quite a bit. If we ever want to target a specific browser list we need it again, but for now it seems the goal is just an ES5 transpile. Many projects (e.g. Vue) use buble for this task as it much simpler than babel, so I went with it. We still need babel for jest, so it continues to be a dependency. The build config is massively nicer now, since it lacks the whole babel config.

I also updated the CircleCI config.

[sbarfurth]

I've pretty much copied Vue's approach, that should be the way to go.

[sbarfurth]

Added note about Typescript to the docs and changelog.

[cyrilchapon]

IMHO; that's a 10-files project.
It could benefit from a full Typescript rewrite after this.

Interested into this ? I can give it a shot maybe

[sbarfurth]

@cyrilchapon I already had a full rewrite done. A full migration won't happen just now as per @imbrn comment on the matter. That said: You are free to do a TypeScript rewrite and let us know. If we ever look to migrate we can merge your branch.

[cyrilchapon]

I see. New transpilation stack will help anyways.

I might give that a shot if I can take time to.
I'll keep you up to date there

[imbrn]

Hey @brfrth , I'm sorry for being all this time off.

Take a look at my last two comments.

[sbarfurth]

@imbrn Replied to both, resolved one. The other one you can decide on.

[sbarfurth]

@imbrn You want this squashed or merged as is?

[imbrn]

Yeah @barfurth , let's squash it before merging.