Is there a way to pretty print Problems?

[tankorsmash]

I was looking at https://arktype.io/docs/#your-first-type the first example, and it's got some killer error displays.

It looks like it depends on an internal stringify, so it's not publically accessible:

import { stringify } from "arktype/internal/utils/serialize.js"

Is there an equivalent? I'm looking to use ArkType as data validation when using Vite's dynamic import, and was hoping to have prettier output.

Thanks for the neat library!

[tankorsmash]

Shortly after creating the issue, I explored the Problem API for message, reason and mustBe etc is really nice, it might not be needed as much!

if (decodedType.problems) {
  // data has problems
  console.log("problems", decodedType.problems);
  decodedType.problems.forEach((problem) => {
    console.error(
      `\`${problem.path.join(".")}\`.\n[${problem.code}] ${problem.reason}`
    );
  });
} else {
  // data is valid
  const data = decodedType.data;
  console.log(data);
}

[ssalbdivad]

Yes, this is built in! What you're looking for is problems.summary.

Each problem also has a builtin description as its toString implementation, so if you do something like problems.join("\n") that should work as well.

[tankorsmash]

Oh awesome! problems.summary looks like exactly what I was looking for, and having the toString's for each will be great. Thank you!