* chore(website): consistent .mdx file naming

* Ran Prettier

* .md/s/x

* Post merge fixups

* Ignore warnonunsupportedtypescriptversion

* Fix Versioning merge conflicts

* chore: enable eqeqeq internally

* Switch to null: never

* Why not add some test coverage

)

* fix(key-spacing): do not use .at(), Node 14 does not support it

* 🚨 Coverage on at()

* Apply suggestions from code review

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Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

docs(key-spacing): fix core rule name

…6384)

fix(sort-type-constituents): Fixed behavior change when sorting TSConditionalType (#6339)

…ing unnecessary selectors (#6376)

* feat(eslint-plugin): [naming-convention] improve performance by removing unnecessary selectors

* Non-nullable validators

* Undo yarn.lock changes

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Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

* feat(typescript-estree): cache project glob resolution

* review

* Fixed CacheDurationSeconds import

* Fix lint

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Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

Co-authored-by: typescript-eslint[bot] <typescript-eslint[bot]@users.noreply.github.com>

…gainst runtime side effects with `verbatimModuleSyntax` (#6394)

chore: enable one-var rule #6405

Co-authored-by: typescript-eslint[bot] <typescript-eslint[bot]@users.noreply.github.com>

…on (#6356)

* feat(eslint-plugin) [no-floating-promises] Error on logical expression

* Update packages/eslint-plugin/src/rules/no-floating-promises.ts

Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

* remove sourceCode Variable

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Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

…enum to strict boolean expressions (#6096)

* feat: add allowNullableEnum option

* test: add allowNullableEnum option

* fix: lint error

* chore: erase indent diff

* fix: error column number

* test: fix output

* test: fix output format

* test: add !nullableEnum pattern

* Update packages/eslint-plugin/src/rules/strict-boolean-expressions.ts

Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

* Update packages/eslint-plugin/tests/rules/strict-boolean-expressions.test.ts

Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

* chore: yarn lint --fix

* perf: use some instead of length

* test: fix output

* test: split into two cases

* docs: add allowNullableEnum

* Update packages/eslint-plugin/src/rules/strict-boolean-expressions.ts

Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

* perf: use some instead of filter

* Update packages/eslint-plugin/docs/rules/strict-boolean-expressions.md

Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

* Update packages/eslint-plugin/docs/rules/strict-boolean-expressions.md

Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

* Update packages/eslint-plugin/src/rules/strict-boolean-expressions.ts

Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

* test: add case

* fix: add string condition

* Fix lil lint issue

* Test fix

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Co-authored-by: Josh Goldberg <git@joshuakgoldberg.com>