Validating phone number in javascript
26-Aug-2020 02:10
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Otherwise it returns a message describing the error and highlight appropriate element with yellow.validate Empty ( ) The function below checks if a required field has been left empty.In this article we will discuss about regular expression for validating Phone number in various format.In the following example user enters a phone number.
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You can use them to constrain input, apply formatting rules, and check lengths.For that we use the seacrh() method and two more regular expressions: /(a-z) / and /(0-9)/.validate Email ( ) Next we want to see if the email address the user entered is real.Also we will use trim() function that will trim leading whitespace off the string.
This wont be perfect validation it is possible to slip not compliant addresses by it but it's normally good enough.
Next, we use the Java Script regular expression /\W/ to forbid illegal characters from appearing in usernames.
