Best JS for Single-Page Applications
AngularJS framework is the best option available currently for Single Page Applications. AngularJS helps you make single page applications like Gmail, where there is no waiting period for page reloads.In short a fast and sleek application for your product or service.
Apt for Test-first approach
As most developers believe a test-driven development ensure zero error at the time of deployment.At any point of time during the development, or if you trust in the test-first approach AngularJS is the correct choice.