In a real case, this function would probably be called as part of a larger validate form function.
If the phone number was invalid, we would want to return false to cancel form submission as well as informing the user of the errors of their ways.
1223, -4567, 1223, 4567) we use the regular expression (/^[- ]? Next, the match() method of the string object is used to match the said regular expression against the input value.
There are many different ways a user might input a phone number.
This code validates a 10 digit phone number taken in any format and sets the phone number text field to the desired output format.
I've found plenty, but it turns out that most of them appear on the surface to be fine, but in reality they don't actually work, like this one: As you can see, this phone validation routine is no good.is an open source component of Wrapp and is licensed under the MIT license.There are no required external dependencies at all!Sometimes they may choose to input it as, (555) 555-5555. As a developer we never really know how they might input the number.Often times we can give our users an example and they will still enter the wrong format.