Node.js : Determining the line count of a text file

const readline = require('readline');const fs = require('fs');var file = 'path.to.file';var linesCount = 0;var rl = readline.createInterface({ input: fs.createReadStream(file), output: process.stdout, terminal: false});rl.on('line', function (line) { linesCount++; // on each linebreak, add +1 to 'linesCount'});rl.on('close', function () { console.log(linesCount); // print the result when the 'close' event is called});

node app.js