javascriptregexvalidationurl-validation

javascript Regex for Absolute AND relative URl

Is there any regex which will validate both an absolute URL and relateve URl for Javascript.

I do have following Regex which works fairly well for absolute URL except the part where it is making the HTTP part mandatory. I want it optional.

Here is Regex:

/(http|ftp|https):\/\/[\w-]+(\.[\w-]+)+([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])?/;

thanks

Solution

  • quick answer, modified Arun's answer to accept '/page', '/page/subpage', 'page/subpage'

    /(\/?[\w-]+)(\/[\w-]+)*\/?|(((http|ftp|https):\/\/)?[\w-]+(\.[\w-]+)+([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])?)/gi

    but in actually, validate the url with RegExp is never esay. lots of edge case, like './page', '../page' etc.

    analyse your requirement carefully, write down the major test cases, write a RegExp pass them all. and be careful with performance.