Ajax Loader 2 Javascriptsource Javascript ajax object is used to fetch data asynchronous from web server without refreshing webpage. for example search results, submitting form etc. ajax can send and receive data like xml, json, text and html from web server without reloading the webpage. a single page application is impossible to without ajax. load data from web server. If you need to load a json file you can use json.parse() to convert the loaded data into an js object. you can also integrate req.responsetype='json' into the function but unfortunately there is no ie support for it, so i would stick with json.parse().
Ajax And Xmlhttprequest Pdf Ajax Programming Software Engineering The xmlhttprequest object can be used to exchange data with a web server behind the scenes. this means that it is possible to update parts of a web page, without reloading the whole page.
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