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What are the best practices for error handling in TypeScript applications?

Explain how to manage errors effectively in TypeScript applications and the types of errors that can occur.

#error-handling#typescript

Answer

  1. Use Custom Error Classes: Define custom error types that extend the built-in Error class for clearer error identification.
  2. Try/Catch Blocks: Implement try/catch for synchronous operations and .catch() for Promises, ensuring proper fallback handling.
  3. Global Error Handling: Leverage window.onerror or process.on('uncaughtException') for capturing unhandled errors globally.
  4. Type Safety: Use union types to define possible error outputs, ensuring type safety during error handling.
  5. Logging Framework: Integrate logging solutions (e.g., Sentry) for descriptive error tracking in production environments.

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