getHotSearch() { this.hotSearch = []; for (let index = 0; index < 4; index++) { let flower = this.flowerList[Math.floor(Math.random() * this.flowerList.length)] this.hotSearch.push(flower) } },
时间: 2024-02-15 15:32:04 浏览: 18
这段代码看起来像是一个Vue.js组件中的方法,它定义了一个名为getHotSearch的函数,该函数在被调用时会生成一个长度为4的空数组this.hotSearch,并通过循环向数组中添加元素。每次循环,它会随机选择this.flowerList数组中的一项作为新元素,并将其添加到this.hotSearch数组中。最终,getHotSearch函数返回一个包含了4个随机元素的数组this.hotSearch。
相关问题
这段代码依旧存在问题,当点击.c_item时无法执行“getSearch”方法内的内容 getSearch内容如下getSearch(e){ let index = e.currentTarget.dataset console.log(index) let searchContent = this.hotSearch[index] console.log(searchContent) },请你修改这段代码
在这段代码中,获取 index 的方式不太正确,应该使用 `e.currentTarget.dataset.index` 来获取。另外,由于 `this.hotSearch` 是一个数组,应该使用 `this.hotSearch[index.index]` 来获取对应的值。修改后的代码如下:
```
<view class="flex-row list">
<view v-for="(item, index) in hotSearch" :key="index">
<view class="c_item color" :data-index="index" @click="getSearch">{{item}}</view>
</view>
</view>
<script>
export default {
data() {
return {
hotSearch: ['apple', 'banana', 'orange']
}
},
methods: {
getSearch(e) {
let index = e.currentTarget.dataset.index
console.log(index)
let searchContent = this.hotSearch[index]
console.log(searchContent)
}
}
}
</script>
```
这样就可以正确地输出点击的索引以及对应的值了。
data() { return { flag: false, flag1: false, flag2: false, flag3: false, flag4: false, flag5: false, }; }, components: { hot, seller, trend, Map, rank, stock, }, methods: { changetheme() { this.$store.commit("tabtheme"); }, full() { this.flag = true; this.$nextTick(() => { this.$refs.seller2.changesize(); }); }, full1() { this.flag1 = true; this.$nextTick(() => { this.$refs.trend2.screenAdapter(); }); }, full2() { this.flag2 = true; this.$nextTick(() => { this.$refs.rank2.screenAdapter(); }); }, full3() { this.flag3 = true; this.$nextTick(() => { this.$refs.hot2.screenAdapter(); }); }, full4() { this.flag4 = true; this.$nextTick(() => { this.$refs.stock2.screenAdapter(); }); }, full5() { this.flag5 = true; this.$nextTick(() => { this.$refs.map2.screenAdapter(); }); },优化后代码
data() {
return {
flags: [false, false, false, false, false, false],
};
},
components: {
hot,
seller,
trend,
Map,
rank,
stock,
},
methods: {
changetheme() {
this.$store.commit("tabtheme");
},
full(index) {
this.flags[index] = true;
this.$nextTick(() => {
switch (index) {
case 0:
this.$refs.seller2.changesize();
break;
case 1:
this.$refs.trend2.screenAdapter();
break;
case 2:
this.$refs.rank2.screenAdapter();
break;
case 3:
this.$refs.hot2.screenAdapter();
break;
case 4:
this.$refs.stock2.screenAdapter();
break;
case 5:
this.$refs.map2.screenAdapter();
break;
default:
break;
}
});
},
},