[Vuejs]-The counter increases the value 100 times vuejs

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If you have to just output the array you can use this:

<div id="axiostest">
    <div v-for="(item, index) in message"  :data-testid="index">
        <p class="text-danger">{{ item }} {{ index }}</p>
    </div>
</div>

And you can do something you want with index^ {{index + 1}}, {{index * 2 }}, etc

And, as Estradiaz said, you get warn because counter++ occurs rerender

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