How do I return something from Ajax?

You can store your promise, you can pass it around, you can use it as an argument in function calls and you can return it from functions, but when you finally want to use your data that is returned by the AJAX call, you have to do it like this: promise. success(function (data) { alert(data); });

Is it better to use Ajax?

Where Should Ajax be Used? Ajax should be used anywhere in a web application where small amounts of information could be saved or retrieved from the server without posting back the entire pages. A good example of this is data validation on save actions.

What are the best alternatives to Ajax?

Popular Alternatives to Ajax

XUL (XML User Interface Language) – It is pronounced as “zool”.
Java Applets – These rich customer tools for browsers are used to attach Sun Microsystems’ Java programs to an HTML internet page and can thus serve the purpose as Ajax.

How do you send data through Ajax?

Send Ajax Request

Example: jQuery Ajax Request. $.ajax(‘/jquery/getdata’, // request url { success: function (data, status, xhr) {// success callback function $(‘p’).append(data); } });
Example: Get JSON Data.
Example: ajax() Method.
Example: Send POST Request.

How do you return false in ajax success?

parent(‘form’). children(‘. item_number_1’). val() }, success: function(result) { return false; } });

Which is not the disadvantage of AJAX?

– The server information can not be accessed within AJAX. – AJAX is not well integrated with any browser. – Data of all requests is URL-encoded, which increases the size of the request. Back functionality cannot work because the dynamic pages don’t register themselves to the browsers history engine.

What are not the advantages of Ajax?

Speeder retrieval of dataDisadvantages of AjaxFollowing are the disadvantages of Ajax: 1. AJAX is dependent on Javascript. If there is some Javascript problem with the browser or in the OS, Ajax will not support 2. Ajax can be problematic in Search engines as it uses Javascript for most of its parts.

Which is better to return data from Ajax success function?

UPDATE: as pointed out in the comments, you might be better using a http get request rather then a post. they both have advantages however get requests can be cached, so for retrieving data it might give a perf boost. Thanks for contributing an answer to Stack Overflow!

How to return Ajax response from JavaScript call?

For instance, you call somebody you want to talk to, but the person is not available, so you leave a message to have him or her call you back. This way, you no longer have to wait on the phone listening to the hold music, you can do other things until the person returns your call.

Why is it important to use Ajax in JavaScript?

It is a better way to create faster, more responsive, and better web-based applications using HTML, Java Script, XML or JSON, and CSS. Using Ajax, a page is able to request things from the server, process the results, and then update the page – all of which happens without the user sensing what’s going on or having to take additional actions.

Can a asynchronous method return plain text?

However, both JSON and XML can be used to package information in the Ajax model. In addition to JSON and XML, data can also be transported as plain text. Asynchronous methods cannot easily return its value, unlike traditional methods.

How do I return something from Ajax?