open a file and read data in nodejs code example

Example 1: read file node

// load fs
const fs = require("fs");
// read the file
const content = fs.readFileSync("./my_file.txt");
// print it
console.log(content.toString());

Example 2: read a file nodejs

const fs = require('fs');

fs.readFile('my-file.txt', 'utf8', function(err, data) {
    if (err) throw err;
    console.log(data);
});