animate is not defined

根据引用和引用的描述，当报错信息"animate is not defined"出现时，可能是因为在文件中缺少了animate的定义。animate是一个用于创建动画效果的函数，通常与其他元素或属性一起使用。为了解决这个问题，可以确保在文件中正确引入animate函数的定义。在引用中提到，返回顶部功能可以用animate函数和scrollTo函数来实现，因此可以尝试使用相同的方法解决问题。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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