new Vue({
el: '#someElement',
data: {
category: [
{
name: 'cate0',
items: [
{
value: 'cate0 item0'
}
]
},
{
name: 'cate1',
items: [
{
value: 'cate1 item0'
}
]
}
]
}
})不改变数据结构，循环输出绑定value的标签,，该怎么写？
不能外层嵌套其他标签<span v-for="这里是循环">{{这里是value}}</span>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<div id="demo">
<div v-for="c in category">
{{c.name}}
<input v-for="item in c.items" v-model="item.value" />
</div>
<div v-for="item in items">
<input v-model="item.value" />
</div>
<div v-for="item in category | get_items">
<input v-model="item.value" />
</div>
{{category | json}}
</div>
<script src="http://cdn.bootcss.com/vue/1.0.17/vue.min.js"></script>
<script>
'use strict';
new Vue({
el: '#demo',
data: {
category: [
{
name: 'cate0',
items: [
{
value: 'cate0 item0'
}
]
},
{
name: 'cate1',
items: [
{
value: 'cate1 item0'
}
]
}
]
},
computed: {
items() {
return this.$eval('category | get_items')
//var arr = []
//this.category.forEach(c => c.items.forEach(t => arr.push(t)))
//return arr
}
},
filters: {
get_items: function (category) {
var arr = []
category.forEach(c => c.items.forEach(t => arr.push(t)))
return arr
}
},
})
</script>
</body>
</html>