node js fs readfile callback code example

Example 1: nodejs readfile

const fs = require('fs');

fs.readFile('/Users/joe/test.txt', 'utf8' , (err, data) => {
  if (err) {
    console.error(err);
    return
  }
  console.log(data);
});

Example 2: fs readfile not working

const content = fs.readFileSync('./Index.html', 'utf8');
console.log(content);

Example 3: fs.readfile

fs.readFile('filename', function read(err, data) {
    if (err) {
        throw err;
    }
    var content = data;
  
    console.log(content);  
   
});

Example 4: fs readfile encoding

fs.readFile('/etc/passwd', 'utf8', callback);

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Javascript Example

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