javascript - 对象不支持此属性或方法 – Javascript 错误

Question

我检查了这个错误部分中已经发布的一些问题，但找不到真正匹配的问题。因此，我再次寻求 SO 社区的支持。

我收到 bassistance validate plugin 的错误(docs)。

代码

jQuery("#formTest").validate({
            rules: {
                event_title: "required",
                calendar1: "required",          
                calendar2: "required",
                event_venue: "required",
                event_des: "required",
                event_access: "required",
                event_email: {required: true,email: true},
                imagesrc:"required"
            },
            messages: {
                event_title: "Please enter the event title",
                calendar1: "Please select the start date",          
                calendar2: "Please select the end date",
                event_venue: "Please enter the event venue",
                event_des: "Please enter the event description",
                event_access: "Please choose one access option",
                event_email:"Please enter valid email address",
                imagesrc:"Please upload image"
            }
        });

Answer 1

此错误最可能的原因是您没有引用 jQuery javascript 文件...

<script type="text/javascript" src="jquery.min.js"></script>

如果您没有包含该脚本，您将在调用 jQuery 框架时收到此错误。