Guide to integrating global interfaces into your Nuxt project

Question

Guide to integrating global interfaces into your Nuxt project

Recently diving into the world of Nuxt 3, I've encountered a challenge while exploring TypeScript functionalities.

My current goal is to create a versatile NavBar featuring multiple buttons with unique links. To achieve this, I aimed to establish an interface that can be passed as an array to the component.

An example structure would be:

interface Button {
  icon: string,
  link: string
}

I'm curious if there's a method to make interfaces globally accessible across my project. Resources on TypeScript integration with Nuxt seem limited - any advice would be highly appreciated.

typescript nuxt.js nuxtjs3

Answer 1

Answer №1

Shoutout to Coffee_fanatic_823, I followed the advice given in his comment and found that incorporating a global declaration works even more efficiently.

To optimize your project structure, establish a folder named schemas at the project's root level with an accompanying index.ts file. In this index file, define your global types as shown in the example below. The great thing is, there's no need to import anything since these declarations are globally accessible.

// ~/schemas/index.ts

export { };

declare global {
  type SomeType = [boolean, string, number]; 

  interface MySpecialInterface {
    ...
  }

  const enum GlobalConstantEnum {
    ...
  }

  ....
}

Answer 2

Shoutout to Coffee_fanatic_823, I followed the advice given in his comment and found that incorporating a global declaration works even more efficiently.

To optimize your project structure, establish a folder named schemas at the project's root level with an accompanying index.ts file. In this index file, define your global types as shown in the example below. The great thing is, there's no need to import anything since these declarations are globally accessible.

// ~/schemas/index.ts

export { };

declare global {
  type SomeType = [boolean, string, number]; 

  interface MySpecialInterface {
    ...
  }

  const enum GlobalConstantEnum {
    ...
  }

  ....
}

Answer 3

Answer №2

Some suggested improvements to Fennec's solution.

I recommend using index.d.ts instead of index.ts and ideally, it should be generated automatically.

// ~/types/index.d.ts

export { MyInterface };

declare global {
  interface MyInterface {
        some_field: number
    }
}

In your tsconfig.json file, make sure to add 'includes' (plural)

  {
    "extends": "./.nuxt/tsconfig.json",
    "includes": [
      "types/*.d.ts"
    ]
  }

Answer 4

Some suggested improvements to Fennec's solution.

I recommend using index.d.ts instead of index.ts and ideally, it should be generated automatically.

// ~/types/index.d.ts

export { MyInterface };

declare global {
  interface MyInterface {
        some_field: number
    }
}

In your tsconfig.json file, make sure to add 'includes' (plural)

  {
    "extends": "./.nuxt/tsconfig.json",
    "includes": [
      "types/*.d.ts"
    ]
  }

Answer 5

Answer №3

A small amendment to Gleb's response - the word "include" should actually be written as "includes" (in plural form)

{
    "extends": "./.nuxt/tsconfig.json", 
    "includes": [ "types/*.d.ts", ] 
}

The use of the singular form caused issues with accessing 'useNuxtApp' and other Nuxt features, whereas using plural resolved the problem completely.

Answer 6

A small amendment to Gleb's response - the word "include" should actually be written as "includes" (in plural form)

{
    "extends": "./.nuxt/tsconfig.json", 
    "includes": [ "types/*.d.ts", ] 
}

The use of the singular form caused issues with accessing 'useNuxtApp' and other Nuxt features, whereas using plural resolved the problem completely.

Guide to integrating global interfaces into your Nuxt project

Answer №1

Answer №2

Answer №3

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