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NodeJS Readline

Line-by-line file reading


const fs = require('fs');
const readline = require('readline');
const rl = readline.createInterface({
 input: fs.createReadStream('text.txt')
});
// Each new line emits an event - every time the stream receives \r, \n, or \r\n
rl.on('line', (line) => {
 console.log(line);
});
rl.on('close', () => {
 console.log('Done reading file');
});

Prompting user input via CLI


const readline = require('readline');
const rl = readline.createInterface({
 input: process.stdin,
 output: process.stdout
});
rl.question('What is your name?', (name) => {
 console.log(`Hello ${name}!`);
 rl.close();
});


Conclusion

In this page (written and validated by ) you learned about NodeJS Readline . What's Next? If you are interested in completing NodeJS tutorial, your next topic will be learning about: NodeJS package json.



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