node.js is also needed for the hot-module-reload capability for rapid application development since it provides a file watcher api to detect changes to source code.īut there is a way to develop Angular 2 application offline without node.js.

So you need a server from which you can serve your application so that all the available HTML 5 technologies is available for Angular 2 to run. Some browsers, particularly Google Chrome restricts files loaded locally for security purposes so that certain HTML 5 technologies used by Angular 2 will produce an error when loaded using the file: protocol.node.js or npm or jspm for that matter automates this process as well as taking all the necessary steps of configuring the files ( jspm) so that whenever you use a particular dependency in your application, that particular dependency's other dependency will also be present in your system. However, doing it manually will take an inexorable amount of time since you have to download files manually which may have other dependencies which will require other files to be downloaded again (yes I've been there). If you can somehow manage to get those dependencies without using node.js, npm or jspm then you can run and develop your application offline.

node.js is only used to manage the dependencies of an angular 2 application.For someone new to Angular 2 development, I can feel the pain of having to learn server side technologies for something that is essentially a client side technology.

Angular js install