Error Events
Many NodeJS modules and APIs emit error events to notify consumers about errors asynchronously. Developers can listen for these error events using the on('error', ...)
method to handle errors gracefully.
const fs = require('fs');
const fileStream = fs.createReadStream('non-existent-file.txt');
fileStream.on('error', (error) => {
console.error('An error occurred:', error.message);
});
How to handle errors in Node JS ?
Error handling is a critical aspect of NodeJS development to ensure the robustness and reliability of applications. NodeJS provides various mechanisms for handling errors, including try/catch blocks, error events, and error-first callbacks. Understanding how to handle errors effectively is essential for building resilient and fault-tolerant NodeJS applications.
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