Differentiate between Observables and Promises

[hp-singh-53e2639c (Harjas Preet Singh)]

Differentiate between Observables and Promises.

[sakshi-srivastava-f3c2a4a4 (Sakshi Srivastava)]

Credits: https://www.syncfusion.com/blogs/post/angular-promises-versus-observables.aspx#:~:text=Promises%20deal%20with%20one%20asynchronous,the%20difference%20between%20these%20two.&text=Emit%20multiple%20values%20over%20a%20period%20of%20time.