I've just learned about corepack, a tool that bundles with Node.js and solves a bunch of problems with handling package managers. But I'll be using it in my development setup from now on.
corepack is bundled with Node.js, and has been since Node.js 14.19. So, if you have Node.js, you have corepack.
You can enable corepack on your machine by running the following command:
corepack enable && corepack enable npmThis enables corepack globally - you don't need to enable it per project.
corepack makes sure you're using the correct package manager for your project. To configure the package manager for your project, add the packageManager field to your package.json:
{
// npm
"packageManager": "npm@10.8.1",
// pnpm
"packageManager": "pnpm@9.1.4",
// yarn
"packageManager": "yarn@3.1.1"
}You must specify an exact version of the package manager you want to use - not a range. All of the below are not valid:
{
// not valid: uses a range
"packageManager": "npm@^10.8.1",
// not valid: specifies 'latest'
"packageManager": "pnpm@latest",
// not valid: must specify an exact version
"packageManager": "yarn"
}Now, if you try to npm install in a project that has packageManager set to pnpm, corepack will show an error:
Usage Error: This project is configured to use pnpm
$ npm ...And if you try to pnpm install there, corepack will automatically download and use the correct pnpm version:
Corepack is about to download https://registry.npmjs.org/pnpm/-/pnpm-9.1.4.tgz.
Do you want to continue? [Y/n]This ensures you're always using the correct package manager for your project.
corepack enable npm?corepack intercepts calls to pnpm and yarn to make sure you're using them correctly. This is set up by running corepack enable.
Without running corepack enable npm, you won't get the same validation when using npm. So, we run corepack enable npm to make sure that npm gets treated the same way as pnpm and yarn.
I ran out of time to continue writing this article. Want me to keep going? What questions do you have? Let me know:
How To Use Corepack
Here's a quick .cursor/rules addition you can make for handling return types in TypeScript.
# Return Types
When declaring functions on the top-level of a module,
declare their return types. This will help future AI
assistants understand the function's purpose.
```ts
const myFunc = (): string => {
return "hello";
};
```
One exception to this is components which return JSX.
No need to
TypeScript announced a full rewrite of TypeScript in Go. In testing, this rewrite has achieved a 10x speedup in some repositories - and up to 15x in others.
TypeScript 5.8's new erasableSyntaxOnly flag enforces pure type annotations by disabling enums, namespaces, and parameter properties.
TypeScript is coming to Node 23. Let's break down what that means.
Learn how to extract the type of an array element in TypeScript using the powerful Array[number] trick.
Learn how to publish a package to npm with a complete setup including, TypeScript, Prettier, Vitest, GitHub Actions, and versioning with Changesets.
