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vue怎樣截取展示數(shù)組數(shù)據(jù)？

Vue.js

慕標(biāo)5832272 2019-03-04 21:03:32

<div v-for="(item, index) in cMList" :key=index> …… …… <div v-for="(items, indexs) in item.list" :key=indexs> {{items.content}} //我想只顯示前三條數(shù)據(jù) </div></div上面這樣可以輸出所有的的數(shù)據(jù) 但是現(xiàn)在我只想讓它輸出前三條數(shù)據(jù) 我改成這樣了v-for="(items, indexs) in item.list.slice(0, 2)"但是報(bào)錯(cuò)了 TypeError: Cannot read property 'slice' of undefined"這是為什么？cMList: [ { uid: 10001, list: [ {nickname: 'aaa', content: '666', time: '2019.2.12'}, {nickname: 'aaa', content: '666', time: '2019.2.12'}, {nickname: 'aaa', content: '666', time: '2019.2.12'}, {nickname: 'aaa', content: '666', time: '2019.2.12'}, {nickname: 'aaa', content: '666', time: '2019.2.12'}, {nickname: 'aaa', content: '666', time: '2019.2.12'}, {nickname: 'aaa', content: '666', time: '2019.2.12'} ] } ]

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3 回答

慕田峪9158850

TA貢獻(xiàn)1794條經(jīng)驗(yàn) 獲得超7個(gè)贊

是你寫(xiě)錯(cuò)了。。。

<div v-for="(item, index) in cMList" :key="index">    <div v-if="item.list" v-for="(items, indexs) in item.list.splice(0, 3)" :key="indexs">
        {{items.content}}    </div></div>

反對(duì) 回復(fù) 2019-03-04