Simple way to avoid caching in Javascript

This is a tried and true method to avoid a situation in which you want to make a call to a static url which may return a different result each time. Simply append an argument to the url with a random or otherwise unique string as the value.

Consider this javascript function:

        function getUniqueString()

        {

            var d = new Date();

            return d.getTime().toString();

        }

This will return a unique string every time that you call it.

Now, suppose you are calling a url that looks like this:

        var url = "http://myserver.com/getSomeImage";

It may work the way you expect in one browser but not in another.  Just append an argument to it like so:

       var url = "http://myserver.com/getSomeImage?cacheKiller=" + getUniqueString();

The url might look like this:

       http://myserver.com/getSomeImage?cacheKiller=1386232969279

Well done!

Comments

[Ottavio Nuccio - Abiti da sposo uomo]

I find useful the information. Thank you!