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Local development

To run the code for your challenge locally, you’ll need bun installed. Our test runners use Bun v1.1 (as of May 2024). The script for your challenge (like ./your_grep.sh) will run your code using this version of bun. It’ll look something like this: 
#!/bin/sh

exec bun run app/main.ts "$@"

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File structure

  • The files for your solution are placed in the app/ directory.
  • app/main.ts is the entrypoint for the program.

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Adding more files

You can add more files and directories to app/. The test runner will include them when compiling your code. For example, if you add a file at app/foo.ts, you could use it like so: 
import { foo, bar } from "./foo";

function main() {
  foo(); // Uses the foo function from foo.ts
  bar(); // Uses the bar function from foo.ts
}
Refer to the Bun documentation for additional details.
Remember to add the export keyword to functions and variables that you want to export.

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Adding dependencies

You can add dependencies to your project using bun add. For example, to add zod as a dependency, run the following command: 
bun add zod
This will add the following line to your package.json file: 
{
  "dependencies": {
    "zod": "^3.0.0"
  }
}
It will also update the bun.lockb file.