jquery validate target input fields with an array name code example

Example: jquery validate array input not working

$('[name^="reg_number"]').each(function() {
    $(this).rules('add', {
        required: true,
        minlength: 2,
        messages: {
            required: "Enter Reg Number",
            minlength: "Enter at least {0} characters",
        }
    })
});