jquery validate addMethod

只能输入m-n个字符且至少有一个字母和一个数字

jQuery.validator.addMethod('pwd', function(value, element, params){
        var length = value.length;
        if(length >= params[0] && length <= params[1]){
            if(value.search(/[a-zA-Z]/) != -1){
                if(value.search(/[0-9]/) != -1){
                    return true;    
                }
            }
        }else{
            return false;   
        }
    },'m-n charachters with at least one letter and one number');

输入m-n个字符并且输入字符只能为字母或者数字

jQuery.validator.addMethod('users', function(value, element, params){
        var re=/^[A-Za-z0-9]*$/;
        var length = value.length;
        if(length >= params[0] && length <= params[1]){
            return re.test(value);
        }else{
            return false;
        }
    },'m-n letters and numbers')