Promises
When using promises in NodeJS, developers can use the .catch()
method to handle errors asynchronously. Promises allow for more concise and readable error handling compared to callback-based approaches.
const fsPromises = require('fs').promises;
fsPromises.readFile('non-existent-file.txt')
.then((data) => {
console.log('File content:', data);
})
.catch((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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