Node read file line

const fs = require('fs');
const readline = require('readline');

async function processLineByLine() {
  const fileStream = fs.createReadStream('input.txt');

  const rl = readline.createInterface({
    input: fileStream,
    crlfDelay: Infinity
  });
  // Note: we use the crlfDelay option to recognize all instances of CR LF
  // ('\r\n') in input.txt as a single line break.

  for await (const line of rl) {
    // Each line in input.txt will be successively available here as `line`.
    console.log(`Line from file: ${line}`);
  }
}

processLineByLine();

Source: stackoverflow.com

File line by line reader Node js

lineReader.open('file.txt', function(reader) {
  if (reader.hasNextLine()) {
    reader.nextLine(function(line) {
      console.log(line);
    });
  }
});

Source: stackoverflow.com

Similar codes

0 vote165 views1 answer
Node print variable
Javascript Node.js
0 vote125 views1 answer
Node map has value
Javascript Node.js
19 votes137 views2 answers
Node fetch response body
Javascript Node.js
0 vote142 views1 answer
Node 10 form data
Javascript Node.js
1 vote128 views1 answer
Download a file nodejs
Javascript Node.js
24 votes128 views3 answers
Node js check type of variable
Javascript Node.js
0 vote132 views2 answers
How to right plain text format file in node js
Javascript Node.js
0 vote128 views1 answer
How to prevent xss attacks in node js
Javascript Node.js
1 vote164 views1 answer
Sqlite3 multithreading nodejs
Javascript Node.js
0 vote120 views1 answer
Node js function infinite parameters
Javascript Node.js