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Validating phone number in javascript

Our powerful, cost-effective phone number validation & lookup API is preventing undelivered messages for businesses all over the world.

There are many different ways a user might input a phone number.

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.

This is a great way to validate the input since the user will be notified before submitting the data if it is valid or not.The problem with validating user input on the client side is that there is no security.The user could simply turn off all javascript or send the data through curl or some other method that bypasses the validation script.For security purposes it is imperative that we validate all user input on the server side.The problem with the server side validation is that the people that make an honest mistake must suffer a page refresh.As an answer to this problem most sites will use both forms of validation.That way if the user makes an honest mistake a javascript popup can alert you before you submit; however, if you have javascript turned off the data will be submitted but the server will validate and reject the error.In this article, we shall learn how to do client side validation of the U. Java Script uses the client machine processing power. It means the application will be more responsive because the load on the server is reduced.You can find many solutions on the web but I found that the most of these solutions are to validate the phone number from one text box. The following image shows phone number input fields (eg: 1) Basically, there are two to validate the phone numbers. The second is to have the phone number not mandatory but if the user enters in any one of the three textbox fields, then the validation takes place.Method 2 Validation Conditions Each textbox field should pass the following validation.


  1. If you want to support custom formats of a phone number, you should use the transformer option. The modifying the value before validating example is good starting point.

  2. I need to validate a phone number in javascript. The requirements are they should be 10 digits, no comma, no dashes, just the numbers, and not the 1+ in front.

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