it is all about angular 2 (not js). how to create angular 2

Question

 hello angluar 2 users,

 

 

 i am beginner in angular2 . how to create blog with comments using angular 2? And how to crud operation with angular 2 using ...........???? have u know that u use  crud operation of angular 2   using service?   please the send the demo with full folder source code?