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JavaScript Object Notation (JSON) is often used as an alternative format for data interchange, [15] although other formats such as preformatted HTML or plain text can also be used. [16] A variety of popular JavaScript libraries, including JQuery , include abstractions to assist in executing Ajax requests.
The code generated by RJS was usually loaded using Ajax, e.g. by using Ajax-enabled helper methods Ruby on Rails provides, such as the link_to_remote helper. It was replaced by jQuery as of Rails 3.1 [8] Many of the Ruby on Rails Ajax-enabled helper methods used to work by using Prototype to perform an Ajax request in older versions of Rails.
XMLHttpRequest (XHR) is an API in the form of a JavaScript object whose methods transmit HTTP requests from a web browser to a web server. [1] The methods allow a browser-based application to send requests to the server after page loading is complete, and receive information back. [2] XMLHttpRequest is a component of Ajax programming.
Ajax involves using asynchronous requests to a server for XML or JSON data, such as with JavaScript's XMLHttpRequest or more modern fetch() (since 2017), or the deprecated ActiveX Object. In contrast to the declarative approach of most SPA frameworks, with Ajax the website directly uses JavaScript or a JavaScript library such as jQuery to ...
Direct Web Remoting, or DWR, is a Java open-source library that helps developers write web sites that include Ajax technology. [1] It allows code in a web browser to use Java functions running on a web server as if those functions were within the browser. The DWR project was started by Joe Walker in 2004, 1.0 released at August 29, 2005.
JSON streaming comprises communications protocols to delimit JSON objects built upon lower-level stream-oriented protocols (such as TCP), that ensures individual JSON objects are recognized, when the server and clients use the same one (e.g. implicitly coded in). This is necessary as JSON is a non-concatenative protocol (the concatenation of ...
JSONP, or JSON-P (JSON with Padding), is a historical JavaScript technique for requesting data by loading a <script> element, [1] which is an element intended to load ordinary JavaScript. It was proposed by Bob Ippolito in 2005. [ 2 ]
Instead, AJAX requests are sent to the server to update the internal state of each screen widget. At the browser, ZK only downloads a JSON description of the web page and uses a client renderer to turn that into a UI. It's quite efficient and under closer inspection, does not download everything at once.