Benjie's TSConfig

This is a bunch of TSConfig options I've grouped together to stop me having to create massive TSConfig files all over the place.

THIS MODULE DOES NOT FOLLOW SEMVER (see below).

Usage

Add the package to your "devDependencies":

npm install --save-dev @benjie/tsconfig
yarn add --dev @benjie/tsconfig

Add to your tsconfig.json depending on your needs:

@benjie/tsconfig/quick.json

Add it to your tsconfig.json:

"extends": "@benjie/tsconfig/quick.json"

These are my generally preferred options for just bringing up a modern project quickly, typically used when hacking out a proof of concept or a test case.

IMPORTANT: ensure your package.json contains "type": "module", or otherwise write your files as .mts extension files.

Outline:

• Everything in @tsconfig/node22
• Support for node --experimental-strip-types as per the Node.js docs
• Disables "lint-y" checks, deferring these to ESLint
• Enables and forces type checking of JavaScript
• My general preferences

{
  "$schema": "https://json.schemastore.org/tsconfig",
  "_version": "22.0.0",
  "compilerOptions": {
    // From @tsconfig/node22:
    "lib": ["es2024", "ESNext.Array", "ESNext.Collection", "ESNext.Iterator"],
    "module": "nodenext",
    "target": "es2022",
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "moduleResolution": "node16",

    // From https://nodejs.org/docs/latest/api/typescript.html#type-stripping
    "target": "esnext",
    "rewriteRelativeImportExtensions": true,
    "erasableSyntaxOnly": true,
    "verbatimModuleSyntax": true,

    // Related:
    "allowImportingTsExtensions": true,

    // From Benjie's preferences

    // I generally keep `tsc` running in parallel with other processes and
    // don't want it clearing the screen unless I opt into that.
    "preserveWatchOutput": true,

    // This has runtime performance overhead! Specifically it means a lot of
    // time is spent in 'instance_members_initializer' in V8. Disable.
    "useDefineForClassFields": false,

    // Use ESLint for these "lint"-y checks
    "noFallthroughCasesInSwitch": false,
    "noUnusedParameters": false,
    "noUnusedLocals": false,

    // Generally good stuff for authoring modules
    "pretty": true,
    "sourceMap": true,
    "importHelpers": true,

    // Generally good stuff for hacking out a project quickly
    "allowJs": true,
    "checkJs": true,
  },
}

Library

The options I commonly use for authoring libraries

TODO

No semver

This package does not follow semver. The major version number follows the Node.js version that it targets (ref: @tsconfig/node22 for example), but actual updates follow Benjie's ever-changing preferences. Since TypeScript is a development-only concern this should only ever cause build-time failures (even with production type stripping, all types are simply ignored).

Contributing

These are my personal preferences and although input is welcome, do not expect your PR to be merged if I don't think it will benefit my projects or is simply not to my taste.

If you notice that I've added a flag which is implied by another flag, please do send a PR to remove it. I do not want redundancy in these configs.