How do you identify and fix possible errors in your work?

To identify and fix errors in Node.js, I use several approaches:

• Logging: I add detailed logs using console.log or specialized libraries (e.g., Winston) to understand where the failure occurs.
• Error handling: I apply try/catch constructs and error event handlers (process.on('uncaughtException'), process.on('unhandledRejection')).
• Debugging: I use the built-in Node.js debugger or external tools (e.g., Chrome DevTools) for step-by-step code analysis.
• Testing: I write unit tests with Jest or Mocha to automatically verify the correctness of functions.

Example of error handling in an asynchronous function:

async function fetchData() {
  try {
    const data = await someAsyncOperation();
    return data;
  } catch (error) {
    console.error('Error fetching data:', error);
    // Additional error handling logic
  }
}