Mystery solved! I finally discovered why sometimes I'd notice inconsistencies in terms of the TypeScript errors between the terminal and VSCode.
This happened because I was using different TypeScript versions. By default, VSCode uses its own TypeScript version (typically a more recent version than the one used by the project).
I'd expect that the default would be for VSCode to use the project's version, but it seems it doesn't.
I suggest always having VSCode use the project's version. This can be achieved by setting VSCode to use the TypeScript Workspace Version.
This will add "typescript.tsdk": "node_modules/typescript/lib" to
.vscode/settings.json and should be committed to the repository, so that the
entire team can benefit from it.
You can also add the setting to your own VSCode User Settings, so that this applies to any instance of VSCode you open:
"typescript.tsdk": "node_modules/typescript/lib",
"typescript.enablePromptUseWorkspaceTsdk": true,
Now the project is in charge (not the editor), no more confusing differences 🙌.
Note: Don't forget to check with your team before pushing the .vscode
folder to the repository, because if someone is already using a
.vscode/settings.json file locally, this will cause conflicts. Unfortunately,
at the moment of writing, it's still not possible to extend
settings. Alternatively, you
can push a .vscode/settings.json.default to serve as reference, similar to
what it's done with env.default or env.sample, for example.