Before You File a Proposal Please Confirm You Have Done The Following...

• I have searched for related issues and found none that match my proposal.
• I have searched the current rule list and found no rules that match my proposal.
• I have read the FAQ and my problem is not listed.

Relevant Package

parser

My proposal is suitable for this project

• I believe my proposal would be useful to the broader TypeScript community (meaning it is not a niche proposal).

Description

Right now, if you want to use parserOptions.projectService's allowDefaultProject, you need to also specify a defaultProject alongside it. But that default project is basically always 'tsconfig.json' as I've set it.

As a convenience for users, how about we default it to 'tsconfig.json' instead of undefined?

Additional Info

Resolution to this issue -either a PR or a wontfix- should block #8031 IMO. If we do end up making the change then the blog post will need to be rephrased a bit.

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