从Vuex中取出数组赋值给新的数组,新数组push时报错的解决方法

Uncaught Error: [vuex] Do not mutate vuex store state outside mutation handlers

<code class="language-javascript">this.maPartListTable = this.$store.state.vehicleMa.maPartListTable; 
</code> 

this.maPartListTable.push(obj);

this.maPartListTable = this.$store.state.vehicleMa.maPartListTable.slice();