Bugfix : summary: undefined type issue

[angad-sethi]

Closes #27129

What I did

I've updated the type for ArgType.table.type.summary to be string | undefined so as to enable exactOptionalPropertyTypes: true in tsconfig.json

Checklist for Contributors

Testing

The changes in this PR are covered in the following automated tests:

• stories
• unit tests
• integration tests
• end-to-end tests

Manual testing

This section is mandatory for all contributions. If you believe no manual test is necessary, please state so explicitly. Thanks!

Documentation

• Add or update documentation reflecting your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Checklist for Maintainers

• When this PR is ready for testing, make sure to add ci:normal, ci:merged or ci:daily GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found in code/lib/cli/src/sandbox-templates.ts

• Make sure this PR contains one of the labels below:

  Available labels

  • bug: Internal changes that fixes incorrect behavior.
  • maintenance: User-facing maintenance tasks.
  • dependencies: Upgrading (sometimes downgrading) dependencies.
  • build: Internal-facing build tooling & test updates. Will not show up in release changelog.
  • cleanup: Minor cleanup style change. Will not show up in release changelog.
  • documentation: Documentation only changes. Will not show up in release changelog.
  • feature request: Introducing a new feature.
  • BREAKING CHANGE: Changes that break compatibility in some way with current major version.
  • other: Changes that don't fit in the above categories.

🦋 Canary release

This pull request has been released as version 0.0.0-pr-27202-sha-9b58ef19. Try it out in a new sandbox by running npx storybook@0.0.0-pr-27202-sha-9b58ef19 sandbox or in an existing project with npx storybook@0.0.0-pr-27202-sha-9b58ef19 upgrade.

More information

Published version	0.0.0-pr-27202-sha-9b58ef19
Triggered by	@valentinpalkovic
Repository	angad-sethi/storybook
Branch	undefined-support-for-argtype
Commit	9b58ef19
Datetime	Wed May 22 08:52:08 UTC 2024 (1716367928)
Workflow run	9188289147

To request a new release of this pull request, mention the @storybookjs/core team.

core team members can create a new canary release here or locally with gh workflow run --repo storybookjs/storybook canary-release-pr.yml --field pr=27202

[Hyzual]

I've cloned your repository, how can I test this from a project using storybook ? I guess I need to replace the version used by the local repo I cloned, but I've never done that. Could you share some pointers ? :)

[valentinpalkovic]

@Hyzual I have created a canary release. You can try it out by upgrading Storybook to it:

npx storybook@0.0.0-pr-27202-sha-9b58ef19 upgrade

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[Hyzual]

The TypeScript error is still present. We have found that we had to modify an interface named InputType from the @storybook/types package to add string | undefined for the TypeScript error to be fixed. I tried looking for it in the code but did not find it 😓. If you know where it is and could change it, I would be grateful!

[shilman]

@angad-sethi Perhaps here https://github.com/ComponentDriven/csf/blob/81a58c947078157f58cc1f45f1fd0c04c2bd1771/src/story.ts#L159