noUnusedParameters: add note about underscore prefix exception #3178
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| Parameters declaration with names starting with an underscore _ are exempt from the unused parameter checking. e.g.: | ||
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| ```ts twoslash | ||
| function returnNull(_a) { |
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This needs a type annotation to prevent the error: https://victorious-plant-05c166c10-3178.centralus.5.azurestaticapps.net/tsconfig/#noUnusedParameters
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Also, set // @noUnusedParameters here. Best to copy the above example and just rename the parameter, actually (but without the @errors)
Copy first example, modify for the example
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Finally got back to this. @jakebailey thanks for the feedback, should be ready to go...hopefully! |
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Minor nit, given _ is special in markdown.
packages/tsconfig-reference/copy/en/options/noUnusedParameters.md
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Co-authored-by: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
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Just remembered this issue and committed that change, @jakebailey. Anything else? |
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Thank you!! |
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In the release notes for noUnusedParameters, there's a note about prefixing the parameter name with an underscore to bypass this error.
This PR adds that same note and example to the noUnusedParameters documentation.
(thanks to @lindboe for noticing this and pointing me to the release docs!)