JavaScript Jquery validate plugin alphanumeric method with acceptance of dot jquery validate plugin not working,jquery validate plugin example,jquery

I have a requirement in a username field where I have to validate the special characters but allow '.' dot character. We have custom method in plugin alphanumeric but it doesn't allow dot. please check the fiddle

jQuery.validator.addMethod("alphanumeric", function(value, element) {
    return this.optional(element) || /^\w+$/i.test(value);
}, "Letters, numbers, and . only please");
Answer:1

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