我正在尝试编写Todo应用程序作为我的第一个Vue项目。似乎没有在TodoItem
标签中的h3
组件中显示我的商品。
我已经仔细检查了所有内容,但看不到任何错误。为什么我的物品没有出现?
App.vue:
<template>
<div id="app">
<Todos v-bind:todos="todos" message="Here are your daily tasks"/>
</div>
</template>
<script>
import Todos from './components/Todos.vue'
export default {
name: 'app',
components: {
Todos
},
data: {
todos: [
{
id: 1,
title: "Todo one",
completed: false,
},
{
id: 2,
title: "Todo two",
completed: false,
},
{
id: 3,
title: "Todo three",
completed: true,
}
]
}
}
</script>
<style>
#app {
font-family: 'Avenir', Helvetica, Arial, sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
text-align: center;
color: #2c3e50;
margin-top: 60px;
}
</style>
Todos:
<template>
<div class="hello">
<h1>{{ message }}</h1>
<div v-bind:key="todo.id" v-for="todo in todos">
<TodoItem v-bind:todo="todo" />
</div>
</div>
</template>
<script>
import TodoItem from '../components/TodoItem.vue'
export default {
name: "Landing",
components: {
TodoItem
},
props: ["message", "todos"],
data: {
}
};
</script>
<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h3 {
margin: 40px 0 0;
}
ul {
list-style-type: none;
padding: 0;
}
li {
display: inline-block;
margin: 0 10px;
}
a {
color: #42b983;
}
</style>
TodoItem:
<template>
<div class="todo-item">
<h3>ITEM: test</h3>
</div>
</template>
<script>
export default {
name: "TodoItem",
props: ["todo"],
data: {
}
};
</script>
<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h3 {
margin: 40px 0 0;
}
ul {
list-style-type: none;
padding: 0;
}
li {
display: inline-block;
margin: 0 10px;
}
a {
color: #42b983;
}
</style>
答案 0 :(得分:0)
data
must be a function用于组件。如果进行以下更改,您的代码将呈现项目:
export default {
name: 'App',
components: {
Todos,
},
data() {
return {
todos: [
{
id: 1,
title: 'Todo one',
completed: false,
},
{
id: 2,
title: 'Todo two',
completed: false,
},
{
id: 3,
title: 'Todo three',
completed: true,
},
],
};
},
};
我高度建议将eslint和eslint-plugin-vue集成到您的编辑器中,以避免出现此类常见错误。
答案 1 :(得分:0)
如前所述,Vue组件中的data
必须是一个函数。
这是一个可以帮助您的工作版本: https://codesandbox.io/s/vue-template-ds5up?fontsize=14