NodeJS Nedir?

data.json

{
    "Author": "Garen",
    "Message": "Hello World"
}

index.js

const currentDir = process.cwd();
const fs = require('fs');

(function init() {
    let dataFilePath = currentDir + '/data.json';
    let encoding = 'utf8';

    const callback = (err, content) => {
        if (!err) {
            console.log(content)
        } else {
            console.log(err)
        }
    };
    fs.readFile(dataFilePath, encoding, callback);
})();