jQuery jQuery Deferred objects and Promises Asynchronous Promises Chaining
Example
If you have multiple asynchronous tasks that needs to occur one after the other, you will need to chain together their promise objects. Here is a simple example:
function First() {
console.log("Calling Function First");
return $.get("/ajax/GetFunction/First");
}
function Second() {
console.log("Calling Function Second");
return $.get("/ajax/GetFunction/Second");
}
function Third() {
console.log("Calling Function Third");
return $.get("/ajax/GetFunction/Third");
}
function log(results){
console.log("Result from previous AJAX call: " + results.data);
}
First().done(log)
.then(Second).done(log)
.then(Third).done(log);
