Formatting rules for codebase

[enessoylu]

Is there any plan to define code formatting rules? There is a great need of it IMHO. Integrating TSLint to the project would be great.

[compulim]

I am not a big fans of prettier. But we should do a better job here. Some points we discussed before:

• 2-space indent 4-space indent
• No trailing spaces
• Single empty line at end of file
• Bracelets are required for one-liner if statement
• Use const/let as much as possible
• Sorted import for better merging

There are more potentially controversary things that come up in my mind:

• Refactoring into multiple files
• Don't publish *.ts to NPM, but individual ES5/6 with source map (inlined or as *.js.map)
• Don't put *.js in the same folder as *.ts
• Ternary operator vs. simple if
• Coalesce using || vs. simple if
• Migrate from nightmare to puppeteer so we can run tests on Travis
  • Also do some cleanup, make it faster, etc
• Bumping versions

Some investigation areas:

• Move to other Observable from rxjs for smaller output

[billba]

If necessary I will die on the 4-space indent hill.

I'd love to be involved in the Observable conversation. I've been following the various libraries closely.

[compulim]

Okay, respect! Will keep that.

Bill, I have some big ambitions and we should talk after free up. 😉

[eanders-ms]

I am all about the 2-space indent these days.

[billba]

@eanders-ms we can't be friends anymore.

[cdagli]

@billba @eanders-ms What are your plans on that?

[compulim]

@corinagum do you think #1982 resolved this issue? If not, please write down what is left.