For each type of input element, we use the code to detect if your browser supports it. You should normally supply all of value, min, and max.
Browsers that support this input type give inconsistent behavior when these attributes are omitted.
Please send corrections and suggested improvements to [email protected] As of January 2013, Opera had the most complete support for these new input elements, followed closely by Chrome.
The beauty of these elements is that you can use them now: for browsers that don't support a particular input type, there is automatic fallback to standard textfields.
But keep in mind that one should not rely only upon Java Script validation. This should be validated on the server side as well.
Here's an example of the above in action: Almost all answers to this questions suggest using Regex to validate emails addresses.
The format of an IP address is a 32-bit numeric address written as four decimal numbers (called octets) separated by periods; each number can be written as 0 to 255 (e.g., 0.0.0.0 to 255.255.255.255).
Though this solution may be simple, I'm sure this is one of those useful things that people will be Googling for and deserves its own entry on the site If only Google would be the first place to look :) Just look at the duplicates of this closed every some time.