Publishing to the official registry

Let’s start by creating a small library that uses a structure that can be seen very often in Node.js projects. The structure consists of an src folder, where the original sources are located, and a lib folder, containing the output to be used by the target system. The target system could either be something such as a bundler for browser applications or a specific version of Node.js.

To initialize this kind of project, we can use the npm command-line utility as we did before:

$ npm init -y

Now, we’ll set everything up. First, we will install esbuild as a development dependency. This can be very helpful for transforming our source files into usable library files:

$ npm install esbuild --save-dev

Next, we change package.json to fit our needs:

package.json

{
  "name": "lib-test-florian-rappl",
  "version": "1.0.0",
  "description": &quot...