There are several libraries available for building command-line interface (CLI) tools in Node.js, such as optimist, minimist, yargs, Caporal.js, and commander. In this article, the author shares their favorite CLI builder, commander, because it comes with TypeScript definitions.
In TypeScript, you can define custom properties on the `window` namespace by declaring them as global properties. For example, if you want to make TypeScript aware of the property `window.__coverage__`, you can declare it in your code using the `declare global` syntax.
This tutorial teaches you how to write tests for Electron using TypeScript and mocha. You'll learn about the necessary dependencies and how to set up your test environment.