1
<template>
<button v-on:click="modify"> modify </button>
<div v-model="lists">{{ lists[0] }}</div>
</template>
<script>
export default {
methods: {
modify: function() {
console.log(this.lists)
this.lists[0][0] = 2
console.log(this.lists)
},
data: function() {
return {
lists: [[1,2,3],[2,3,3]]
}
}
}
</script>
模板中的數組似乎沒有更新。但日誌控制檯已更改。如何在Vue中的數組中響應數據
當數組是數組時,如何使數據處於被動狀態?
什麼是實際發生的事情:
Before clicking modify
<div v-model="lists">{{ lists[0] }}</div> # produce 1
After clicking modify
<div v-model="lists">{{ lists[0] }}</div> #produce 1
什麼是預期:
Before clicking modify
<div v-model="lists">{{ lists[0] }}</div> # produce 1
After clicking modify
<div v-model="lists">{{ lists[0] }}</div> #produce 2
@m_callens感謝您的接收 – ytbryan