I have to make sure that first letter is alphabet, I am follow this code.
<script type="text/javascript"> var pen_name = $('#pen_name').val(); if(!/[a-zA-Z]/.test(pen_name)){ alert("First character start with Alphabet"); return false; } </script>
This code not working when I enter first character alphabet.
Use this example code it check first character is alphabet.
<script type="text/javascript"> var pen_name = $('#pen_name').val(); if(!/^[a-zA-Z]{1}/.test(pen_name)){ alert("First character start with Alphabet"); return false; } </script>
This example code check first character alphabet second onwards alphanumeric with some special characters. Hope it will be very helpful for you.
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