How to access the value of a promise?

Question

I\'m looking at this example from Angular\'s docs for $q but I think this probably applies to promises in general. The example below is copied verbatim from the

Answer 1

.then function of promiseB receives what is returned from .then function of promiseA.

here promiseA is returning is a number, which will be available as number parameter in success function of promiseB. which will then be incremented by 1