add exercises and solution in typescript

Author: ythirion

README.md

@@ -125,17 +125,17 @@ given concept:
 
 Here are the libraries we use in the different days per supported language:
 
-| Topic                  | java                                                             | C#                                                                                          | kotlin                                                                                               |
-|------------------------|------------------------------------------------------------------|---------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------|
-| Test framework         | [junit](https://junit.org/junit5/)                               | [xUnit](https://xunit.net/)                                                                 | [Kotest](https://kotest.io/)                                                                         |
-| Fluent assertions      | [assertJ](https://joel-costigliola.github.io/assertj/)           | [FluentAssertions](https://fluentassertions.com/)                                           | Native `kotest` assertions                                                                           |
-| Mocking                | [mockito](https://site.mockito.org/)                             | [NSubstitute](https://nsubstitute.github.io/)                                               | [mockk](https://mockk.io/)                                                                           |
-| Approval testing       | [approvalTests](https://github.com/approvals/approvaltests.java) | [Verify.xUnit](https://github.com/VerifyTests/Verify)                                       | [approvalTests](https://github.com/approvals/approvaltests.java)                                     |
-| Property-Based testing | [vavr-test](https://github.com/vavr-io/vavr-test)                | [FSCheck](https://fscheck.github.io/FsCheck/)                                               | [kotest-property](https://kotest.io/docs/proptest/property-based-testing.html)                       |
-| Fake data generator    | [instancio](https://www.instancio.org/)                          | [Bogus](https://github.com/bchavez/Bogus)                                                   | Not used                                                                                             |
-| Architecture tests     | [archunit](https://www.archunit.org/)                            | [TngTech.ArchUnitNET.xUnit](https://archunitnet.readthedocs.io/en/latest/)                  | [archunit](https://www.archunit.org/)                                                                |
-| Functional library     | [vavr](https://www.vavr.io/)                                     | [LanguageExt.Core](https://github.com/louthy/language-ext)                                  | [arrow-kt](https://arrow-kt.io/)                                                                     |
-| Functional assertions  | [assertj-vavr](https://github.com/assertj/assertj-vavr)          | [FluentAssertions.LanguageExt](https://www.nuget.org/packages/FluentAssertions.LanguageExt) | [kotest-extensions-arrow](https://github.com/kotest/kotest-extensions-arrow#kotest-extensions-arrow) |
+| Topic                  | java                                                             | C#                                                                                          | kotlin                                                                                               | typescript                               |
+|------------------------|------------------------------------------------------------------|---------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------|------------------------------------------|
+| Test framework         | [junit](https://junit.org/junit5/)                               | [xUnit](https://xunit.net/)                                                                 | [Kotest](https://kotest.io/)                                                                         | [jest](https://jestjs.io/)               |
+| Fluent assertions      | [assertJ](https://joel-costigliola.github.io/assertj/)           | [FluentAssertions](https://fluentassertions.com/)                                           | Native `kotest` assertions                                                                           | Native `jest` assertions                 |
+| Mocking                | [mockito](https://site.mockito.org/)                             | [NSubstitute](https://nsubstitute.github.io/)                                               | [mockk](https://mockk.io/)                                                                           | Native `jest` mocking features           |
+| Approval testing       | [approvalTests](https://github.com/approvals/approvaltests.java) | [Verify.xUnit](https://github.com/VerifyTests/Verify)                                       | [approvalTests](https://github.com/approvals/approvaltests.java)                                     | [approvals](http://approvaltests.com)    |
+| Property-Based testing | [vavr-test](https://github.com/vavr-io/vavr-test)                | [FSCheck](https://fscheck.github.io/FsCheck/)                                               | [kotest-property](https://kotest.io/docs/proptest/property-based-testing.html)                       | [fast-check](https://fast-check.dev/)    |
+| Fake data generator    | [instancio](https://www.instancio.org/)                          | [Bogus](https://github.com/bchavez/Bogus)                                                   | Not used                                                                                             | [fakerjs](https://fakerjs.dev/)          |
+| Architecture tests     | [archunit](https://www.archunit.org/)                            | [TngTech.ArchUnitNET.xUnit](https://archunitnet.readthedocs.io/en/latest/)                  | [archunit](https://www.archunit.org/)                                                                | N/A                                      |
+| Functional library     | [vavr](https://www.vavr.io/)                                     | [LanguageExt.Core](https://github.com/louthy/language-ext)                                  | [arrow-kt](https://arrow-kt.io/)                                                                     | [fp-ts](https://gcanti.github.io/fp-ts/) |
+| Functional assertions  | [assertj-vavr](https://github.com/assertj/assertj-vavr)          | [FluentAssertions.LanguageExt](https://www.nuget.org/packages/FluentAssertions.LanguageExt) | [kotest-extensions-arrow](https://github.com/kotest/kotest-extensions-arrow#kotest-extensions-arrow) | Native `jest` assertions                 |
 
 ## Contributors
 

exercise/ts/day01/jest.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+    transform: {'^.+\\.ts?$': 'ts-jest'},
+    testEnvironment: 'node',
+    testRegex: '/tests/.*\\.(test|spec)?\\.(ts|tsx)$',
+    moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node']
+};