Understanding ajax vs nec requires examining multiple perspectives and considerations. How to pass parameters in $ajax POST? 70 Jquery.ajax does not encode POST data for you automatically the way that it does for GET data. Jquery expects your data to be pre-formated to append to the request body to be sent directly across the wire.
A solution is to use the jQuery.param function to build a query string that most scripts that process POST requests expect. javascript - jQuery AJAX submit form - Stack Overflow. I have a form with name orderproductForm and an undefined number of inputs.
In this context, i want to do some kind of jQuery.get or ajax or anything like that that would call a page through Ajax, and send along a... jquery - $.ajax - dataType - Stack Overflow. contentType is the HTTP header sent to the server, specifying a particular format. Example: I'm sending JSON or XML dataType is you telling jQuery what kind of response to expect. Similarly, expecting JSON, or XML, or HTML, etc. The default is for jQuery to try and figure it out.
Building on this, the $.ajax() documentation has full descriptions of these as well. ajax - What does it mean when an HTTP request returns status code 0 .... For what it is worth, depending on the browser, jQuery-based AJAX calls will call your success callback with a HTTP status code of 0. We've found a status code of "0" usually means the user navigated to a different page before the AJAX call completed. jQuery: Return data after ajax call success [duplicate].
Note: This answer was written in February 2010. See updates from 2015, 2016 and 2017 at the bottom. You can't return anything from a function that is asynchronous. In this context, what you can return is a promise. I explained how promises work in jQuery in my answers to those questions: If you could explain why do you want to return the data and what do you want to do with it later, then I might be able to ...
jquery - Ajax tutorial for post and get - Stack Overflow. I need a simple ajax tutorial or case study for a simple input form, where I want to post a username through an input form, which sends it to the database and replies with the results. javascript - How does AJAX work? The author, an Ajax expert, demonstrates how these technologies work together -- from an overview to a detailed look -- to make extremely efficient Web development an easy reality.
He also unveils the central concepts of Ajax, including the XMLHttpRequest object. Equally important, how to send FormData objects with Ajax-requests in jQuery?. The XMLHttpRequest Level 2 standard (still a working draft) defines the FormData interface. This interface enables appending File objects to XHR-requests (Ajax-requests).
📝 Summary
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