Error in v-on handler: "TypeError: Cannot read properties of undefined (reading 'indexOf')

引用中提到，当出现错误"TypeError: Cannot read properties of undefined (reading 'indexOf')"时，大概率是以下两种情况之一：1) 对象本身为空undefined，所以无法读取属性；2) 试图读取不应该读取的属性，比如在数组中读取属性值或在对象中读取length值。引用中也提到，可以先确认报错位置调用对象的类型，然后做空值判断即可。在你的代码中，可以检查一下是否正确地获取了id，因为封装的方法中有id，但是页面上没有找到，所以报错了。请确保你正确地获取了id。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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