Quick fix to install regular .js npm packages

Let's say I start a new project. I start writing out an import for, say, express because I'm certain I'll be using that, but I haven't bothered to install it yet.

import express from "express";

Immediately, I might get an error like Cannot find module 'express'. because I didn't install the package before using it. This happens regardless of if I have noImplicitAny on. But this means I have to switch to a terminal and do an npm install.

We already give a quick fix to install missing @types packages, we should have a fix that

1. Gives the option of installing a missing package as a dependency or a dev dependency.
2. Also installs the types for that package if necessary in the same fashion.

Commencez par suivre le quick fix existant qui installe les packages @types manquants et la gestion des imports non résolus tels que express. Le travail est terminé lorsqu’un package npm standard manquant peut être installé comme dépendance ou dépendance de développement, avec ses types installés de la manière correspondante lorsque nécessaire.