If the input email address satisfies our regular expression, ‘test’ will return true otherwise it will return false. You can call this method whenever you want to validate email address.
A while ago I put up a Password Strength Checker using Java Script and Regular Expressions.
There are no required external dependencies at all!
Though for the datetime and date validator to you need to specify a parse and format function and for that you most likely will want to use a library, is highly recommended.
The goal of is to provide a cross framework and cross language way of validating data.
This Java Script demo verifies that an email address is in the correct format and that the user has typed in the same address in both fields to prevent mistyping of the address.
Example: Directions: Simply cut and paste the below code into the section of your page.
It contains a form with one box that is checked for "email validity".
If the search() method returns a -1, then an alert would tell the user that an invalid email address has been entered and returns a false value.
Last month I wrote about regular expressions in Java, today I’ll show you how to use regular expression in Java Script to validate email address.
On that same note, you can also check the structure of an email address utilizing the same regular expression (regex) methodology.
Description: A script that closely examines the content of a form box to ensure that the user entered a valid email address.