Be explicit about browser support targets

[edrex]

es2015, move fast and break things, etc. List supported browsers in docs. In future, display badges for CI build status across supported browsers (testling or sauce)

[pmario]

Since MS dropped old support for old browsers, https://www.microsoft.com/en-us/WindowsForBusiness/End-of-IE-support we don't need to maintain them too.

It seems we are good with ES2015: http://kangax.github.io/compat-table/es5/ and browser support.

[edrex]

ES2015 is actually what es6 is called now, since they moved to a yearly rolling release schedule for the spec. es5 is basically what we're all used to.

[pmario]

uups. thx for the catch. It's the same site, but a different page :) http://kangax.github.io/compat-table/es6/

[linonetwo]

We use https://github.com/browserslist/browserslist with a transpiler to automatically target older browsers while not wasting our knowledge and the productivity of the latest ES.

For example

"browserslist": [
    "last 1 version",
    "> 1%",
    "IE 10"
  ]

this works with esbuild babel and most of the transpilers.

[pmario]

I did find this project https://github.com/lebab/lebab

Lebab transpiles your ES5 code to ES6/ES7. It does exactly the opposite of what Babel does. If you want to understand what Lebab exactly does, try the live demo.

Which may be able to help us to "modernize" or codebase if we want to.

[pmario]

@edrex @Jermolene Can we close this issue in favour of: Updating the JavaScript dialect used by the TiddlyWiki core #7353

[Jermolene]

Thanks @pmario