功能以下:
这里就须要一开始只显示6个数据,点击展开才显示所有
javascript
HTML里调用showdetailList:java
<div> <p v-for="(item, index) in showdetailList"> <span>{{item.title}}</span> <span>{{item.name}}</span> </p> </div> <div v-if="detailList.length > 6" v-on:click="changeFoldState"> <span>{{brandFold?'展开':'收起'}}</span> </div>
data数据:web
data() { return { brandFold: true }
}
moke一个数据:express
mocData() {
var items = ['Dr.Ci:Labo城野医生', '日本', '控油 收敛毛孔', '任何肤质', '面部', '化妆水', '任何肤质', '面部', '化妆水']
var lists = ['商品品牌', '品牌国', '功能', '适合肤质', '适用部位', '产品类型', '商品品牌', '品牌国', '功能']
for (var i = 0; i < items.length; i++) {
let item = {title: lists[i], name: items[i]}
this.detailList.push(item)
}
console.log(this.detailList)
}
使用computed属性:
set方法里的val值就是get方法返回的值svg
computed: {
showdetailList: {
get: function () {
if (this.brandFold) {
if (this.detailList.length < 7) {
return this.detailList
}
let newArr = []
for (var i = 0; i < 6; i++) {
let item = this.detailList[i]
newArr.push(item)
}
return newArr
}
return this.detailList
},
set: function (val) {
this.showdetailList = val
}
}
}
changeFoldState方法:ui
changeFoldState() {
this.brandFold = !this.brandFold
}