Testing TypeScript with JavaScript

created as answer for StackOverflow question

Branches

master using babel

• jest ❤️
• babel
• @babel/core
• @babel/preset-env
• @babel/preset-typescript

ts-jest using ts-jest

• jest ❤️
• TypeScript ❤️
• ts-jest

Coverage 💯%

-------------------|----------|----------|----------|----------|-------------------|
File               |  % Stmts | % Branch |  % Funcs |  % Lines | Uncovered Line #s |
-------------------|----------|----------|----------|----------|-------------------|
All files          |      100 |      100 |      100 |      100 |                   |
 GenericService.ts |      100 |      100 |      100 |      100 |                   |
-------------------|----------|----------|----------|----------|-------------------|