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  1. const fs = require('fs');
  2.  
  3. function readFiles(file1, file2, callback) {
  4.     fs.readFile(file1, 'utf8', (err, data1) => {
  5.         if (err) {
  6.             console.log('Error reading file1:', err);
  7.         }
  8.         fs.readFile(file2, 'utf8', (err, data2) => {
  9.             if (err) {
  10.                 console.log('Error reading file2:', err);
  11.             }
  12.             callback(data1, data2);
  13.         });
  14.     });
  15. }
  16.  
  17. readFiles('file1.txt', 'file2.txt', (data1, data2) => {
  18.     console.log('File 1 Data:', data1);
  19.     console.log('File 2 Data:', data2);
  20. });
  21.  
Success #stdin #stdout 0.1s 35752KB
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stdin
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Standard input is empty
stdout
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Error reading file1: { [Error: ENOENT: no such file or directory, open 'file1.txt'] errno: -2, code: 'ENOENT', syscall: 'open', path: 'file1.txt' }
Error reading file2: { [Error: ENOENT: no such file or directory, open 'file2.txt'] errno: -2, code: 'ENOENT', syscall: 'open', path: 'file2.txt' }
File 1 Data: undefined
File 2 Data: undefined
https://ideone.com/U7Dnha
language:
Node.js (node 11.12.0)
created:
9 days ago
visibility:
public

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