<div id="app"> <div class="chart-wrap"> <div id="chart"> <apexchart type=donut width=380 :options="chartOptions" :series="series" /> </div> </div> <div class="actions"> <button @click="randomize">RANDOMIZE</button> <button @click="appendData">ADD</button> <button @click="removeData">REMOVE</button> <button @click="reset">RESET</button> </div> </div>