"Enhance your development experience with the TypeScript definitions for the Vue 2 plugin

Currently, I am utilizing VSCode alongside TypeScript classes for developing Vue 2 components. You can check out more information at: vuejs/vue-class-component.

Within my present project, I make use of plugins like vue-i18n for handling translations of labels and other elements. These plugins extend the functionalities of Vue components by adding their own methods such as this.$t(...) to retrieve a translation based on a key. However, VSCode does not recognize or acknowledge these extensions (or mixins) automatically.

I am seeking guidance on how to teach VSCode about the existence of these extension functions in order for intellisense to start working properly. Is it possible to create my own *.d.ts files? If so, what is the process for linking them so that VSCode can access them for intellisense suggestions? Any examples or links to repositories demonstrating this would be greatly appreciated.

typescriptvue.jsvisual-studio-codetypescript-typings

Answer №1

This particular issue has been successfully resolved and detailed in the Vue TypeScript documentation under the title "Augmenting Types for Use with Plugins".

Below is a quick reference snippet from the mentioned page:

// To illustrate, here's how you can declare an instance property $myProperty with type string:

// 1. Ensure 'vue' is imported prior to declaring augmented types
import Vue from 'vue'

// 2. Specify the file containing the types to be augmented
//    The constructor type of Vue is found in types/vue.d.ts
declare module 'vue/types/vue' {
  // 3. Define the augmentation for Vue
  interface Vue {
    $myProperty: string
  }
}

Answer №2

vue-i18n does not come with official TypeScript types.

Instead, you can utilize the TypeScript types from DefinitelyTyped:

npm i -D @types/vue-i18n or yarn add -D @types/vue-i18n

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