Exactly, what Kevin has said.
Replace the whole callback (stuff inside .then() method) with something lke
this:
app.controller('MyCtrl', function() {
$http.get('/data/url)
.then(someObject);
// and later:
var data = [1, 2, 3];
}
So, what is going on here:
1. http.get gets called.
2. Whatever we get from get(), we call its' then() method. We give it
''some object'.
3. Data gets assigned. (var data =...)
Now, your $http.get has returned a promise. We have given that promise a
'callback'. So stuff like:
var myFun = function(response) {/*do stuff*/}
http.get().then(myFun);
is almost the same as
http.get().then(function (response) {/*do stuff */});
In both cases, you're not calling myFun. You're calling .then() and giving
it myFun as parameter.
So a long long time past that (probably a couple hundred thousand
nanoseconds :) the get() will receive the response, let's say it calls it
*response*. When it does, it has your myFun to call with the response. So
it will do that: myFun(response).
So order of operation:
1. http.get gets called.
2. Whatever we get from get(), we call its' then() method. We give it
''some object'.
3. Data gets assigned. (var data =...)
4. myFun(response)
Better?
On Saturday, April 26, 2014 5:28:17 AM UTC+2, Kevin Ingwersen wrote:
>
> Because the code with B) is a callback. Its first added to the stack of
> execution and ran later, which is why variables go out of scope in these
> cases. So the code
>
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