Contents
Why is my jQuery AJAX callback not being called?
This blogs explains a particular case when a jQuery Ajax callback might not be get called once the request is completed/succeed/failed. In this case, the callback is not found due to incorrect definition of a javascript context. In other words, the request is done but your controller does not respond to it.
Is the success callback function not executed in JavaScript?
I have a JavaScript Ajax call (jQuery.ajax), that does not execute the success callback function.
Where is the Ajax call done in jQuery?
Note that in my example the ajax call is done inside a function called “onPressRegister”. This was on purpose and this information is crucial to understand the problem I want to show.This function is triggered when a button from my view is pressed. The link between the “press” event and the controller function is done initially inside the view.
Why is press not called in jQuery Ajax?
If you attach a controller function like this, it will be called using the button context and not the controller context. “press” is a button property which receives a function. That function might be a property from your controller. However, it doesn’t mean that the context inside this function is the controller.
Is there a problem with the Ajax call?
There is nothing wrong with the Ajax call. The problem is with our attachment between the “press” event of the button and the controller function. Let’s go back to our button constructor.
Can a constructor be called within an async callback?
Basically: super note: If you need to use super, you cannot call it within the async callback. TypeScript note: this causes issues with TypeScript because the constructor returns type Promise instead of MyClass. There is no definitive way to resolve this that I know of.
What happens when the Ajax call is completed?
When it completes the ajax call, it informs the caller by calling its callback reference. Using the callback reference, we can create a reusable independent function which can just focus on making ajax call.
When to use callback in async in Java?
What is callback :- Let’s say we have a function F1 which calls F2. F2 is doing some async operation like AJAX. F1 would like to know the result of the ajax call. Now F1 will pass another function say C1 as an additional parameter to F2 which F2 will call after it process the ajax request completely.