How to validate URL address in JavaScript?

Javascript Web Development Front End Technology

To validate URL address in JavaScript, use “regex” as in the following code. It returns “true” for correct URL address, else “false”

Example

Live Demo

<!DOCTYPE html>
<html>
   <body>
      <script>
         var myURL;
         function validURL(myURL) {
            var pattern = new RegExp('^(https?:\\/\\/)?'+ // protocol
            '((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.?)+[a-z]{2,}|'+ // domain name
            '((\\d{1,3}\\.){3}\\d{1,3}))'+ // ip (v4) address
            '(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ //port
            '(\\?[;&amp;a-z\\d%_.~+=-]*)?'+ // query string
            '(\\#[-a-z\\d_]*)?$','i');
            return pattern.test(myURL);
         }
         document.write(validURL("http://qries.com"));
      </script>
   </body>
</html>

Arushi

Published on 30-Jan-2018 06:03:32

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