Jquery .validate（）的附加规则

Question

我正在使用JQuery来验证表单，并希望selectedUsername字段只接受不带空格的字母数字字符。我似乎找不到这样做的规则 - 我该怎么办？

$('.theForm').validate({
        errorElement: 'label', //default input error message container
        errorClass: 'help-inline', // default input error message class
        focusInvalid: false, // do not focus the last invalid input
        ignore: "",
        rules: {
            chosenUsername: {
                required: true,
                minlength: 4
            }
        },

        messages: { // custom messages for radio buttons and checkboxes
            message: {
                required: "Please enter a username of at least 4 characters.",
                minlength: "Minimum of 4 characters."
            }

        },

谢谢！ 仲裁器

Answer 1

试试这个：

jQuery.validator.addMethod("alphanumeric", function(value, element) {
    return this.optional(element) || /^[a-zA-Z0-9]+$/.test(value);
}); 

参考this