Contents
How to know which element in body triggered Ajax request?
If you want to use the ajax request handlers, an id will need to be assigned (manually or automatically) to the element that triggered the event. You could then send this id as an additional key-value pair in the request (element_id:THEID) and grab it with various substring methods in the ajax request handlers.
When to trigger a validation event in jQuery?
You need to trigger form validation before checking if it is valid. Field validation runs after you enter data in each field. Form validation is triggered by the submit event but at the document level. So your event handler is being triggered before jquery validates the whole form. But fret not, there’s a simple solution to all of this.
When to invoke the submit handler in jQuery?
The jQuery.validate plugin will invoke the submit handler if the validation has passed. if the form is Invalid stop the execution. else if valid send the ajax request.
How to define a callback function in JavaScript?
That is unnecessary. Your callback function will be called with the return data as a parameter automatically. It is very possible to define your callback outside the sucess: i.e. the handleData function will be called and the parameter passed to it by the ajax function.
Do you need Ajax call in trigger event handler?
You don’t need it most cases because the bound event handler is immediately executed. However, if you have an AJAX call in trigger event handler, the code from accepted answer will not work: Or consider using success or error callbacks for .ajax () call in .trigger () event handler.
Can a callback function be called outside the sucess?
Your callback function will be called with the return data as a parameter automatically. It is very possible to define your callback outside the sucess: i.e. the handleData function will be called and the parameter passed to it by the ajax function. The success property of the ajax method only requires a reference to a function.