vue展開收起小例子
阿新 • • 發佈:2018-04-18
show round 收起 compute XP ted wal ret data
<template>
<div class="wrap">
<div class="box">
<div v-for="item in showItem">{{item}}</div>
<div @click="showAll = !showAll">{{btnText}}</div>
</div>
</div>
</template>
<script>
export default {
data() {
return {
foodList: [
"蘋果", "香蕉", "橙子", "葡萄", "橘子" ,"柚子","柿子" //進行顯示的數據
],
showAll: false //標記數據是否需要完全顯示的屬性
}
},
computed: {
showItem() {
if (this.showAll == false) { //當數據不需要完全顯示的時候
var showItem = []; //定義一個空數組
if (this.foodList.length > 4) { //這裏我們先顯示前四個
for (var i = 0; i < 4; i++) {
showItem.push(this.foodList[i])
}
} else {
showItem = this.foodList
}
return showItem; //返回當前數組
} else {
return this.foodList;
}
},
btnText() {
if (this.showAll == false ) { //對文字進行處理(枚舉)
return "展開全部"
} else {
return "收起"
}
}
}
}
</script>
<style lang="scss" scoped>
</style>
vue展開收起小例子