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I'm using HTML5 form validation to validate phone numbers from India. Phone numbers from India are 10 digits long, and start with 7, 8, or 9. For example: 7878787878 9898989898 8678678878 These
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Updated: 6 hours ago
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I've got an HTML5 pattern that works great for phone numbers in the following format: 111-222-3333 111 222 3333 (777)-888-9999 (777)888-9999 But if a user enters (777-999-9999 It passes the
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Updated: 4 hours ago
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So when a user submits a form it checks for phone number format because we pass a regex of a phone number in pattern attribute of HTML input. But the only pattern is not sufficient to fulfill our requirement. we need an HTML tag which is input type=”tel”, which is used for the telephone.
Here we will show how you can integrate phone number validation with HTML5. To validate a phone number with a regular expression (regex), we will use type and pattern attribute in HTML input field. The following example code validates a phone number and checks whether the user provided a phone number in the correct format (xxx-xxx-xxxx).
The pattern is a regex which checks for the format of the value which we put in the HTML input. So when a user submits a form it checks for phone number format because we pass a regex of a phone number in pattern attribute of HTML input.
Any time you can use a specific feature of HTML, instead of resorting to building regular expressions, you should use it. HTML5 introduced a number of new form validation features, and pattern is just one of them.