How can I perform asynchronous file I/O in Node.js?

How can I perform asynchronous file I/O in Node.js?

You can use the 'fs' module in Node.js, specifically the 'fs.promises' API for async file operations.

Can you show me an example of reading a file asynchronously?

Sure! Here's a simple example:

const fs = require('fs').promises;

async function readFile() {
    try {
        const data = await fs.readFile('example.txt', 'utf8');
        console.log(data);
    } catch (error) {
        console.error('Error reading file:', error);
    }
}
readFile();

What about writing to a file asynchronously?

You can use 'fs.writeFile' like this:

async function writeFile() {
    try {
        await fs.writeFile('output.txt', 'Hello, World!');
        console.log('File written successfully!');
    } catch (error) {
        console.error('Error writing file:', error);
    }
}
writeFile();

Are there any performance considerations I should be aware of?

Yes, when performing many file operations, consider using streams for better performance and memory efficiency.