为什么会有bug？Uncaught TypeError: dataOptions.call is not a function
作者：互联网
<!DOCTYPE html>
<html>
<div id="app">
<select v-model="selectItem" @change="selectFn($event)">
<!--选择项的value值默认选择项文本 可动态绑定选择项的value值 更改v-model指令绑定数据-->
<option v-for="item in items" :value="item.id">{{item.name}}</option>
</select>
<div>{{selectItem}}</div>
<!--选择项的value值-->
</div>
<script src="https://unpkg.com/vue@next"></script>
<script>
const app = Vue.createApp({
data: {
selectItem: '分类1',
items: [
{id:11, name: '分类1'},
{id:22, name: '分类2'},
{id:33, name: '分类3'}
]
},
methods: {
selectFn(e) {
console.log(e)
console.log(e.target.selectedIndex) // 选择项的index索引
console.log(e.target.value) // 选择项的value
}
}
});
app.mount('#app')
</script>
</html>
标签：function,TypeError,console,name,dataOptions,app,选择项,id,log 来源： https://blog.csdn.net/weixin_40945354/article/details/121265641