===>ng new todo (create angular project todo) ===>ng serve (run angular prject) ===>ng test (run test cases) ===>ng e2e (end to end test) ===>ng generate component welcome (create component named welcome)
===>ng new todo (create angular project todo) ===>ng serve (run angular prject) ===>ng test (run test cases) ===>ng e2e (end to end test) ===>ng generate component welcome (create component named welcome)