How do I handle files in Node.js?

How do I handle files in Node.js?

In Node.js, you can use the built-in 'fs' module to handle file operations like reading, writing, and deleting files.

Can you show me an example of reading a file?

Sure! Here's a simple example:

const fs = require('fs');

fs.readFile('example.txt', 'utf8', (err, data) => {
    if (err) {
        console.error(err);
        return;
    }
    console.log(data);
});

What about writing to a file?

To write to a file, you can use the fs.writeFile method. Here's an example:

fs.writeFile('output.txt', 'Hello, World!', (err) => {
    if (err) {
        console.error(err);
        return;
    }
    console.log('File has been written!');
});

How do I handle errors when working with files?

You can handle errors by checking the err parameter in the callback functions, as shown in the examples. Always ensure to log or handle the error appropriately.