If the async calls are wrapped as promises, then its pretty easy to coordinate the calls. Promises can be chained together, chaining the then clauses. if the then doesn't return a value, subsequent then's will chain when complete, or it can return a promise
which will delay the next then.
AsyncCall1(param1).then(function (result1) {
//handle result
// make the next async call
return AsyncCall2(param2);
}).then (function (result2) {
//handle result of AsyncCall2
}).then (function() {
//waits until previous promise is complete
return AsyncCall3(param3);
}).then ...
You can also coordinate a set of promises, by waiting until one of a set, or all of a set are complete.
var p=[];
for (var i=0; i<10; i++)
{
p.push(AsyncCall(item[i]).then( function(result) {
//be careful in here, if you use i, it will not have the value you expect
// do something with result
}));
}
WinJS.Promise.any(p).then(function (){
// this will be called when any of the promises in array p are complete
});
WinJS.Promise.join(p).then(function (){
// this will be called when all the promises in array p are complete
});
