Configure eslint to read common types in src/types/types.d.ts vue3 - vuejs3

Question

My eslint .eslintrc.js, now properly in the src folder, is the following:
module.exports = {
env: {
browser: true,
commonjs: true,
es2021: true
},
extends: [
'plugin:vue/vue3-recommended',
'standard',
'prettier'
],
parserOptions: {
ecmaVersion: 2020,
parser: '#typescript-eslint/parser',
'ecmaFeatures': {
'jsx': true
}
},
plugins: [
'vue',
'#typescript-eslint'
],
rules: {
'import/no-unresolved': 'error'
},
settings: {
'import/parsers': {
'#typescript-eslint/parser': ['.ts', '.tsx']
},
'import/resolver': {
'typescript': {
'alwaysTryTypes': true,
}
}
}
}
I'm attempting to use eslint-import-resolver-typescript, but the documentation is a bit opaque.
I currently get errors on lines where a externally defined type is used (StepData in this example):
setup() {
const data = inject("StepData") as StepData;
return {
data,
};
},

Answer 1

The answer was the following. In types.d.ts (or other file if you want to have different collections of your custom types):
export interface MyType {
positioner: DOMRect;
content: DOMRect;
arrow: DOMRect;
window: DOMRect;
}
export interface SomeOtherType {
.. and so on
Then in the .vue files, import the types I need for the component:
import type { MyType, SomeOtherType } from "../types/types";
Before I was not using the export keyword and the types just worked without being imported. They have to be imported like this if you use export. It's kind of amazing how you are just expected to know this, the documentation for Typescript or Vue is sorely lacking in examples.