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Rajesh Kumar Yadav
Rajesh Kumar Yadav Subscriber

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

#node #programming #webdev #javascript

Create a new file as app.js and paste below code -

app.js

 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 });
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Run below command -

 node app.js
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You will get the line count of text file.

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