Explain how to write to a file in Node.js?

Q: Explain how to write to a file in Node.js?

const fs = require('fs'); fs.writeFile('example.txt', 'Hello, Node.js!', 'utf8', (err) => { if (err) { console.error(err); return; } console.log('File written successfully.'); });

Difficulty: 2/10

fs module, async vs sync, streams

You can write to a file in Node.js using the `fs.writeFile()` method. Here's an example:

javascript

Scenario Questions

0-2 years experience

1How would you write a JSON config object to a file called config.json?
2What happens if you call fs.writeFile on a path that's actually a directory?
3Why might you use writeFileSync in a CLI startup script instead of the async version?

Follow-up Questions

What happens if the file doesn't exist?
How would you handle writing a 10GB file?
When would you choose sync over async?

Explain how to write to a file in Node.js?

You can write to a file in Node.js using the fs.writeFile() method. Here's an example:

Scenario Questions

Follow-up Questions

Explain how to write to a file in Node.js?

You can write to a file in Node.js using the fs.writeFile() method. Here's an example:

Scenario Questions

Follow-up Questions

You can write to a file in Node.js using the `fs.writeFile()` method. Here's an example:

You can write to a file in Node.js using the `fs.writeFile()` method. Here's an example: