First make sure you have installed node.js 8.X and npm 6.X version. You can check it on own terminal window simply by entering node -v and npm -v . You can also download latest nodeJs from here.
$ npm -v$ node -v
Ionic 3 target IOS, Android, Window all these three platform so you need to install there respective SDK to make a build. Even if you didn’t have SDK configure still you can run this app in own browser.
Download VS Code Download here
How to install VS Code Click here
Download Visual Studio 2015 or above for Back End configurations Download here
How to install Visual Studio Click here
Download SQL Server Download here
How to install SQL Server Click here