jquery – Javascript Regex to validate URL and Empty at the same time

I tried to write a regular expression to work with the position-absolute jQuery validation plugin to give error if the string is left empty OR its a invalid URL. It works well for the URl but doesn\’t give error if a empty string is there . Here\’s the regex

 \"regex\": /^\\S$|^(http[s]?:\\/\\/){0,1}(www\\.){0,1}[a-zA-Z0-9\\.\\-]+\\.[a-zA-Z]{2,5}[\\.]{0,1}/,

Can somebody tell what\’s wrong in the regex?

EDIT:

I\’m using this plugin for jQuery validation

Demo: Go to this URL and in the URL validtion section, remove HTTP and see the error messages

http://www.position-relative.net/creation/formValidator/demos/demoValidators.html

When I add required and URL validators together, it shoots 2 errors. But with only URL

validator, it doesn\’t say that its a Invalid URL. I just need 1 error for both Empty and

Invalid URL.

https://github.com/posabsolute/jQuery-Validation-Engine

Thanks

Rating: 5 out of 5 based on 3 ratings

Posts Related to jquery - Javascript Regex to validate URL and Empty at the same time

• Aug 11th, 2012 javascript If Variable(s) is True Saturday AM 03:49:18


• Aug 12th, 2012 javascript - Trying to validate form Sunday AM 10:32:59


• Nov 12th, 2012 building custom and simple regex in javascript Monday AM 11:07:24


• Aug 11th, 2012 javascript - How do I make a regular expression that matches everything on a line after a given character? Saturday AM 02:05:11


• Jul 23rd, 2012 regex - lookbehind in javascript? Monday PM 13:10:52


• Aug 17th, 2012 Javascript and RegEx for removing special characters Friday AM 02:19:43


• Jul 11th, 2012 jquery - Parsing stuck-together json in javascript Wednesday AM 11:09:19


• Aug 05th, 2012 javascript - how display a jquery validate message inside a div tag Sunday PM 14:39:07


• Jul 17th, 2012 RegEx for maximum length in JavaScript Tuesday AM 11:40:18


• Jul 11th, 2012 javascript - Regular Expression: match hh:mm, hh.mm or h Wednesday AM 05:09:14

The post jquery – Javascript Regex to validate URL and Empty at the same time appeared first on Javascript ASK.

via Javascript ASK http://javascriptask.phpfogapp.com/jquery-javascript-regex-to-validate-url-and-empty-at-the-same-time.html