A valid email is of the format: [email protected] The name can be a set of ‘atoms’ separated by dots. single or double quotes and any character inside the quotes Now, to the domain part. MUSEUM .travel, .international or even .vermögensberatung For example all the following email addresses are valid: Source The sad truth is that despite the complex regular expression validation, the email may not be existing, so can still be invalid for practical purposes.Most email validation checks assumes that the top level domain can have up to 4 characters. You have just validated the format – not its existence.It has an onsubmit event attached to a function called validate() that we are going to create later inside this form there are three inputs one for our phone number another one is for postal codes and the third and the last one is a submit button that is going to submit the form after we are done filling it. It contains only the code that validates the phone number.In the first line, I am using Element By Id() to grab the phone number from the input element.//reported to validate incorrectly: [email protected] as true /[A-Z0-9._% -] @[A-Z0-9-] ..[A-Z]/igm //reported to validate incorrectly: [email protected]@ as true /[A-Z0-9._% -] @[A-Z0-9.-] .[A-Z]/igm //current version /^(([^Sam Deering has 15 years of programming and website development experience.
This is building on my previous post on how to use regular expressions with j Query. Update 12/05/13: Separated into versions for testing.A regular expression can be a single character, or a more complicated pattern.Regular expressions can be used to perform all types of text search and text replace operations. It searches a string for a specified pattern, and returns the found text as an object.Then I used the test function to test my string against the regular expression and print the result in an alert.Now let’s jump to the regular expression itself: UK postal code examples : EC1A 1BB W1A 0AX M1 1AE B33 8TH CR2 6XH DN55 1PT So, 1 or 2 alphabetic characters, followed by 1 or 2 digits, then a space and one digit and exactly two alphabetic characters.