Angular2试用记录

First touch Angular 2, after seeing many posts from G+.
Goto the website for Angular 2: angular.io
Check the docs: learn angular 2 in 5 mins.
mkdir angul2learn cd angular2learn npm install -g tsd message got: npm WARN engine joi-assert@0.0.3: wanted: {“node”:”>= 0.10.0 <= 0.11.0”} (current: {“node”:”2.1.0”,”npm”:”2.10.1”})