Thank you for this PR @ikatyang! I pasted a part of the document I had problems with into your playground and the output was much better! No three spaces any more! This means that the preview won't be broken on GitHub/GitHub and that my text editor won't go crazy when I select + tab!

One last thing I'm not sure how to configure is using --tab-width=4 for markdowns and --tab-width=2 for js/ts stuff in a single project. But that's minor compared to the problem with three spaces in ordered lists!

One last thing I'm not sure how to configure is using --tab-width=4 for markdowns and --tab-width=2 for js/ts stuff. But that's minor compared to the problem with three spaces in ordered lists!

See https://prettier.io/docs/en/configuration.html#configuration-overrides, or if you're talking about js/ts code block in markdown, it's currently not supported.

That's exactly what I needed, thanks! ❤️

Really looking forward to go for this prettier.config.js in my future TypeScript projects!

module.exports = {
  // tabWidth: 2, // default
  overrides: [
    {
      files: "*.md",
      options: {
        tabWidth: 4,
      },
    },
  ],
};

As mentioned in #3459 (comment), a huge bonus of having tabWidth: 4 in markdown is that unordered lists have the same indent as the ordered ones. This makes it possible to change the type of a list without getting a huge git diff!

@ikatyang who would be the best people to review this? Shall we ping them?

cc @azz

Perfect, thank you all! Are you planning to fit this change into the upcoming 1.11? That would be just awesome, I can't wait 🙌 😃

Yes it will be in 1.11.

@azz could you add this to my changelog PR?

Just upgraded to 1.11 and all worked! Thank you so much @ikatyang for responding to my concerns in #3459 (comment) so quickly and to the rest of the team for such a great work on the new release! To be honest, when I saw three spaces in my markdown after prettier went through it, I thought I'd need to enter a long and hard debate because 2/4 spaces would be a breaking change. However, the ease and the speed with which the change went through ended up beyond my even most optimistic expectations!

You all rock! 🗿 😄