… in scope (#7786)

In a real browser and JSDOM the check will use DOM-Level-3 `Node.isEqualNode`
and for everything else a deep equality check should do the trick.

…sDomNode` (#7786)

…7797)

…es (#7799)

## Summary

Trivial. Replace "form" with "forum" in issue template.

## Test plan

Skipped tests, as this is a minor typo fix in a GitHub issue template.

 See #7760

* Migrate jest-changed-files to Typescript

* Add changelog entry

* Update e2e/__tests__/jestChangedFiles.test.js

Co-Authored-By: loryman <lorenzo.rapetti.94@gmail.com>

* Stricter typings


Merge remote-tracking branch 'origin/jest-changed-files-typescript' into jest-changed-files-typescript

* Make prettier happy

## Summary

It doesn't make sense to wrap a `runJust` call into `stripAnsi` since the latter works only with strings.
`runJest` returns an object so stripAnsi just passes it along.

Materials:

- Commit where the code was added in the first place: e12cab6#diff-4cf7d6c79ff377b63522b3af20e34e8eR307
- stripAnsi source code: https://github.com/chalk/strip-ansi/blob/097894423fedb6b4dca3005ad45608b893fcdcf8/index.js

* chore: migrate jest-matcher-util to TypeScript

* link to PR

* unknown and fix flow

…7838)

* expect: Improve report when matcher fails, part 7

* Update CHANGELOG.md

…7855)

## Summary

`jest-validate` distinguishes between sync and async functions, but it should not. Fixes #7894.

## Test plan

```js
const { validate } = require('jest-validate')
assert(validate({ name: async () => {} }, { exampleConfig: { name: () => {} } }).isValid)
assert(validate({ name: () => {} }, { exampleConfig: { name: async () => {} } }).isValid)
assert(validate({ name: async () => {} }, { exampleConfig: { name: async () => {} } }).isValid)
assert(validate({ name: () => {} }, { exampleConfig: { name: () => {} } }).isValid)
```

…7888)

#impacc

…d values correctly (#7938)

<!-- Thanks for submitting a pull request! Please provide enough information so that others can review your pull request. The two fields below are mandatory. -->

<!-- Please remember to update CHANGELOG.md in the root of the project if you have not done so. -->

## Summary

Fixes #7937: `toStrictEqual` does not consider arrays with objects having undefined values correctly

## Test plan

Before that change, the following assertion was failing:

```js
expect([{a: undefined}]).not.toStrictEqual([{}]);
```

Now it passes as expected.

* Assigned createTransformer function only to the transformer exported by babel-jest

* Improved typing

* Updated changelog

* Added e2e test

…#7940)

…oots` (#7961)

* Migration to ts (part 1)

* Migration to ts (part 2)

* Migration to ts (part 3)

* Minor tweaks

* TS migration (part 4)

* Wrong dts

* dts for co

* Added project references

* Remove not ts module

* Replace custom co dts with @types/co

* No index file

Co-Authored-By: doniyor2109 <doniyor2109@gmail.com>

* Some tweaks

* Some tweaks

* Temp DiffOptions type

* Remove extra eslint disable

* Workaround for global vars

* Resolves

* Move @types/co to devDeps

* Update packages/jest-circus/src/run.ts

Co-Authored-By: doniyor2109 <doniyor2109@gmail.com>

* Update packages/jest-circus/src/utils.ts

Co-Authored-By: doniyor2109 <doniyor2109@gmail.com>

* Tweaks

* Remove extra types

* Fix failing test

Cannot run ts via node cli

* TS migration part (4)

- Added Global and Environment types
- Workaround for RawMatcherFn type

* Fix linter errors

* Fix types for tests

* Fix @jest/types cannot be found in test

* Detailed comment for flowfix

* Ignore ts errors for non migrated modules

* `import =` is not supported by @babel/plugin-transform-typescript

* Fix weired ts error

Exported variable 'jestAdapter' has or is using name '$JestEnvironment' from external module "packages/jest-types/build/Environment" but cannot be named.

microsoft/TypeScript#5711

* Fix linter errors

* Remove extra eslint disables

* Move expect types to @jest/types

* tweaks

* remove jest config change

* fix test

* Added reminder for replacing Each type

* keep comments from old tests

* Update CHANGELOG.md