![[Vue warn]: Invalid prop: type check failed for prop “index“. Expected String, got Undefined,第1张](/aiimages/%5BVue+warn%5D%3A+Invalid+prop%3A+type+check+failed+for+prop+%E2%80%9Cindex%E2%80%9C.+Expected+String%2C+got+Undefined.png "[Vue warn]: Invalid prop: type check failed for prop “index“. Expected String, got Undefined,第1张")
[Vue warn]: Invalid prop: type check failed for prop “index“. Expected String, got Undefined
写后端的时候会有这样的报错，我们只需如下 *** 作就好
index是因为没有转为String类型，所以+''就可以了
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[Vue warn]: Invalid prop: type check failed for prop “index“. Expected String, got Undefined
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