index.vue
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<template>
<div class="tab-container">
<el-tag>mounted times ：{{ createdTimes }}</el-tag>
<el-alert :closable="false" style="width:200px;display:inline-block;vertical-align: middle;margin-left:30px;" title="Tab with keep-alive" type="success" />
<el-tabs v-model="activeName" style="margin-top:15px;" type="border-card">
<el-tab-pane v-for="item in tabMapOptions" :key="item.key" :label="item.label" :name="item.key">
<keep-alive>
<tab-pane v-if="activeName==item.key" :type="item.key" @create="showCreatedTimes" />
</keep-alive>
</el-tab-pane>
</el-tabs>
</div>
</template>
<script>
import tabPane from './components/TabPane'
export default {
name: 'Tab',
components: { tabPane },
data() {
return {
tabMapOptions: [
{ label: 'China', key: 'CN' },
{ label: 'USA', key: 'US' },
{ label: 'Japan', key: 'JP' },
{ label: 'Eurozone', key: 'EU' }
],
activeName: 'CN',
createdTimes: 0
}
},
watch: {
activeName(val) {
this.$router.push(`${this.$route.path}?tab=${val}`)
}
},
created() {
// init the default selected tab
const tab = this.$route.query.tab
if (tab) {
this.activeName = tab
}
},
methods: {
showCreatedTimes() {
this.createdTimes = this.createdTimes + 1
}
}
}
</script>
<style scoped>
.tab-container {
margin: 30px;
}
</style>