What is the best way to access a component's data within its method using Vue and Typescript?

Starting a Vue.js project with TypeScript and using single file components instead of class-styled ones has been my goal. However, I have encountered a recurring issue where I get error TS2339 when trying to reference my components' data using the "this" keyword:

export default { 
  data(){ 
    return { x: 10 as number };
  },
  methods: {
    foo() {
      if(this.x > 10) {
        return this.x;
      }
    }
  }
}

This error always leads to "TS2339 Property 'x' does not exist on type 'CombinedVueInstance'

typescriptvue.js

Answer №1

The explanation for why it is not functioning as expected can be found in the detailed official documentation.

To resolve this issue, you must utilize the following syntax within a Single File Component (SFC)

<script lang="ts">
import Vue from 'vue'
export default Vue.extend({
  
})
</script>

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