Learning TypeScript 2.x - Second Edition

The execution environment

The execution environment is one of the first things that we must think about before we can start developing a TypeScript application. Once we have compiled our TypeScript code into JavaScript, it can be executed in many different environments. While most of those environments will be part of a web browser such as Chrome, Internet Explorer, or Firefox, we might also want to be able to run our code on the server side or in a desktop application in environments such as Node.js, RingoJS, or Electron.

It is important to keep in mind that there are some variables and objects available at runtime that are environment-specific. For example, we could create a library and access the document.layers variable. While document ...