prefer-arrow-callback is unset by Prettier

[fregante]

I think Prettier needs to be customized further because it undoes some of XO’s changes. For example:

// prettier: true
.map(function (repo) {
  return repo.name;
});

// prettier: false
.map(repo => {
  return repo.name;
});

// prettier: true again, notice the parens
.map((repo) => {
  return repo.name;
});

Related:

• Request: respect Prettier default settings #491

[sindresorhus]

Agreed