This a good strategy if you just need to get your project done before your science fair that starts in an hour.
There are a few gems floating around the internet that do a bang-up job validating URLs.
This is a good place to start if you aren’t sure where to begin.
You can check if your user has provided a link with a working HTTP/HTTPS URL like this: All you have to do is use Ruby’s built in URI.parse method to write a simple six line checker.
A Regular expressions is a powerful tool in any language.
If a user accidentally fat-fingers:https:// instead writes:ttps:// users could be breaking your code completely by accident!
So next time you even think about letting your users input a URL remember these quick validation tactics to keep your site up and running.I had stumbled upon a bug that I had not anticipated when I created my web scraper.How could my scraper know if a URL was actually real? This is the type of oversight that can create all sorts of awkward problems with your code.In this tutorial we will be discussing how to use regular expression in Java Script.Regular expression is the most important part in form validations and it is widely used for search, replace and web crawling systems. or succinctly, Regular expressions use to detect patterns in strings of text.Regular expressions provides a quick and easy way of matching a string to a pattern.