Linting TypeScript code

[karol-majewski]

What should the talk be about?

• TSLint or ESLint? What are the differences?
• How do they work with Prettier?
• Are there alternatives to these two?
• Can I use one tool for JavaScript, TypeScript, and GraphQL?
• What setup do you recommend?

Why is that important?

The recent plans for ESLint seem to have stirred the situation. It's not clear which tools should one use now. Is it worth switching over?

Who will learn from it?

Everyone.

[hasparus]

More ideas:

• eslint-typescript -- is it ready to use? How to configure it alongside your JS eslint config while migrating apps (I have a good example).
• Marie Kondo Your Lint Config
• Wotan -- https://github.com/fimbullinter/wotan

[karol-majewski]

that + what is the timeline for TSLint deprecation:

microsoft/tslint-microsoft-contrib#876

[hasparus]

There are so many JavaScript linters out there.
Which one should we use?
How do I configure ESLint for TypeScript?
What the heck is Wotan?
Won't linter slow me down?
Why are these rules so annoying?
How do I create a linter config package for my team?
There are so many questions and even more opinions.
Let's argue about them loudly while drinking beer.

Agenda:
  - How to avoid "Best Practices" and become friends with your linter.  
  - Can I already ditch TSLint for ESLint. Does it hurt?
  - What the heck is Wotan?
  - How to add typescript-eslint rules to your JS eslint config.