This is not going to be a complete answer to your question, but hopefully this will help you and others when you try to read the documentation on the $q service. It took me a while to understand it. Let’s set aside AngularJS for a moment and just consider the Facebook API calls. Both the … Read more
These answers, including the selected answer, are good for introducing promises conceptually, but lacking in specifics of what exactly the differences are in the terminology that arises when using libraries implementing them (and there are important differences). Since it is still an evolving spec, the answer currently comes from attempting to survey both references (like … Read more
In each case, return the jqXHR object returned by $.ajax(). These objects are Promise-compatible so can be chained with .then()/.done()/.fail()/.always(). .then() is the one you want in this case, exactly as in the question. function first() { return $.ajax(…); } function second(data, textStatus, jqXHR) { return $.ajax(…); } function third(data, textStatus, jqXHR) { return $.ajax(…); … Read more
To me, this result doesn’t make sense. By attaching to this promise chain, each then is implying the intent that it will be dependant upon the successful resolution of d1 and a result being passed down the chain No. What you are describing is not a chain, but just attaching all the callbacks to d1. … Read more