What is preventing me from consistently accessing the Type Definition while my cursor is on a JavaScript/TypeScript parameter name in VS Code, and what are some strategies I can use to overcome this issue?

Imagine I have the following code snippet in my VS Code:

type T1 = { x: number };
type T2 = { x: number } & { y: string };

function foo(arg1: T1, arg2: T2) {}

If I place my cursor on arg1 and go to the type definition (either through the menu or a shortcut), it correctly takes me to the definition of T1. However, if I do the same for arg2, it displays "no type definition found for 'arg2'. It appears that for types using &, I am unable to retrieve the type definition. I am running VS Code 1.79.0 on Windows 10.

Could this be a bug or am I overlooking something?

Edit: Here is the content of my tsconfig.json file:

{
  "include": [ "*.ts" ],
  "compilerOptions": {
    "target": "es2022",
    "module": "commonjs",
    "moduleResolution": "node",
    "strict": true
  }
}

Answer №1

After testing this issue on VS Code 1.79.0 Ubuntu Snap with TypeScript 5.1.3, I was able to replicate the problem. What surprises me is the unexpected behavior for arg1 - it's not something I would have anticipated.

Interestingly, Go To Type Definition works smoothly when selecting the T2 type annotation of arg2. This functionality seems to be working as intended and could serve as a temporary solution for now.

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