https://github.com/denismurphy/emulating-associated-value-enums-typescript

Emulating Associated Value Enums in TypeScript
https://github.com/denismurphy/emulating-associated-value-enums-typescript

associated-values chai educational interface mocha npm swift types typescript union

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Emulating Associated Value Enums in TypeScript

• Host: GitHub
• URL: https://github.com/denismurphy/emulating-associated-value-enums-typescript
• Owner: denismurphy
• License: mit
• Created: 2023-02-24T22:59:03.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2024-08-14T14:54:29.000Z (5 months ago)
• Last Synced: 2024-08-14T16:27:08.267Z (5 months ago)
• Topics: associated-values, chai, educational, interface, mocha, npm, swift, types, typescript, union
• Language: TypeScript
• Homepage:
• Size: 8.79 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# 🏷️ Emulating Associated Value Enums in TypeScript

This project demonstrates how to emulate Swift's Associated Value Enums in TypeScript.

🍏 Swift allows defining Associated Value Enums that can contain other types within them. While TypeScript doesn't support this natively, it can be emulated using Interfaces and Type Unions.

## 💻 Code Example

The code example creates a `Barcode` object with two methods:

- 📊 `upc`: Creates a new barcode object with UPC values

- 📱 `qrCode`: Creates a new barcode object with QR code values

It also includes two utility methods:

- ✅ `isUPC`: Checks if a given barcode is a UPC

- ✅ `isQRCode`: Checks if a given barcode is a QR code

The `switch` method returns a new `BarcodeSwitchBuilder` object that allows you to build a switch statement based on the barcode type.

## 🧪 Running the Tests

This project includes a Mocha test to ensure that the `BarcodeSwitchBuilder` works as expected.

To run the tests, execute the following command in your terminal:

```

npm test

```

## 🎓 Conclusion

Emulating Associated Value Enums in TypeScript can be achieved using Interfaces and Type Unions. The example provided in this project demonstrates one approach to accomplish this.