vue循环创建id拼接索引

Question

<div v-for="(data,index) in arr">

<canvas :id="mycanvas(index)" width="140" height="140"></canvas>

</div>

循环创建 canvas 但是会报_vm.mycanvas is not a function

不用canvas标签用正常的div的话是没有问题的

Answer 1

mycanvas是写到computed中了吧，写到methods中就没事了methods:&nbsp;{ &nbsp;&nbsp;&nbsp;&nbsp;mycanvas&nbsp;(index)&nbsp;{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;'item'&nbsp;+&nbsp;index &nbsp;&nbsp;&nbsp;&nbsp;} &nbsp;}