아래는 예시인데, 핵심은 배열 안에 변수를 넣어주면 된다.
:class="{'form-control':true,['box_'+index]:true}"
https://stackoverflow.com/questions/40346884/dynamic-class-name
Dynamic class name
How to generate dynamic class name? li v-for='obj in objs' | {{ obj.id }} {{ obj.title }} div id="obj-{{ obj.id }} " style="float:right; color:red;" This sample doesn't work! I need this
stackoverflow.com
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