vue报错信息：Avoid using non-primitive value as key, use string/number value instead.

这个错误信息是因为在使用 Vue.js 的时候，你将一个非原始数据类型作为了一个 key，而 Vue.js 只支持 string 或 number 作为 key。这通常出现在使用 v-for 指令时，你可以通过将 key 值设置为一个字符串或者数字来解决这个问题。例如：

<div v-for="item in items" :key="item.id">
  {{ item.text }}
</div>

在这个例子中，我们将 item.id 作为 key 值，因为它是一个数字类型的原始数据类型。这样就可以避免这个错误了。

相关问题

vue.runtime.esm.js:4605 [Vue warn]: Avoid using non-primitive value as key, use string/number value instead.

This warning message is usually triggered when you use a non-primitive value (such as an object or an array) as a key in a Vue.js template. Vue.js recommends that you use string or number values as keys instead.

You can fix this warning by converting your non-primitive value to a string or a number and using that as the key. For example, if you have an object named `myObject`, you can convert it to a string using `JSON.stringify(myObject)` and use that as the key.

Here's an example of how you can fix this warning in a Vue.js template:

<template>
  <div v-for="(item, index) in items" :key="JSON.stringify(item)">
    {{ item.name }}
  </div>
</template>

In this example, we're using `JSON.stringify(item)` as the key instead of `item` itself. This ensures that the key is a string and prevents the warning from being triggered.