What practices do you apply to prevent errors in your work?

To prevent errors in Node.js, I apply the following practices:

• Use strict typing with TypeScript or JSDoc to catch errors at compile time.
• Write unit tests and integration tests using Jest or Mocha to verify code correctness.
• Handle all possible errors, especially in asynchronous code, using try/catch and error handlers in promises.
• Apply linters (e.g., ESLint) to maintain code quality and consistency.
• Break down code into small functions and modules to improve readability and simplify debugging.
• Use logging (e.g., with Winston) to track application state and identify issues.

Example of error handling in an asynchronous function:

async function fetchData() {
  try {
    const response = await fetch('https://api.example.com/data');
    if (!response.ok) {
      throw new Error(`HTTP error! status: ${response.status}`);
    }
    const data = await response.json();
    return data;
  } catch (error) {
    console.error('Error fetching data:', error);
    // Additional error handling
  }
}