Set Path Alias For Cleaner Imports

In the tsconfig.json file of a TypeScript project, there are a bunch of compiler options that you can specify. One of those compiler options is paths. This is an object that can map path aliases to directories in your project.

In projects where nested files are importing modules from other parts of the file tree, you can end up with cluttered imports like this:

import { prisma } from '../../server/db.server'
import { List } from '../../components/list'

By setting a path alias in your tsconfig.json file, like so, you can tidy these up:

{
  "compilerOptions": {
    "paths": {
      "~/*": ["./app/*"]
    }
  }
}

Now I can write any import such that it anchors to the app directory with ~.

import { prisma } from '~/server/db.server'
import { List } from '~/components/list'

I prefer a single path alias if I can get away with it, but you can add several to suit your project if you'd like.

source