Dynamically changing chart types with Vue Chart.js

It is possible to dynamically update your chart type with vue-chartjs. The way I did it is by accessing the options in the chart itself and replacing it with the prop I get in which says which chart type it should become and then do an update on the chart. It is not the most elegant solution but it works.

<script>
import { Line, mixins } from 'vue-chartjs';
const { reactiveProp } = mixins;

export default {
  extends: Line,
  name: "LineChart",
  mixins: [reactiveProp],
  props: {
    options: { type: Object },
    chartType: { type: String }
  },
  mounted () {
    this.renderChart(this.chartData, this.options);
  },
  watch: {
    options: {
      deep: true,
      handler () {
        this.$data._chart.options = this.options;
        this.updateChart();
      }
    },

    chartType (newVal) {
      this.$data._chart.config.type = newVal;
      this.updateChart()
    }
  },
  methods: {
    updateChart () {
      this.$data._chart.update();
    },
  }
}
</script>

in Vuejs, it is not possible to change mixins after the component being created, and because of this I've used a wrapper component in my other solution, so I can pass a mixin dynamically before the component being created, but unfortunately, there is no way to have some kind of reactive mixin.

my solution for you current situation would be something like that:
https://codesandbox.io/s/vue-template-y5wsw

in the above solution, I have created two components, BarChart and LineChart
to switch between those dynamically, I am using one of the most awesome features in vuejs, Dynamic Component

and of course to avoid duplicating the data source, you can use vuex to share data between multiple components, or you can have the data in the parent page and access your dataset or options like

this.$parent['whatever data property in your parent component']

Hope you found this helpful.