Nodejs readfile

Fs.writefile

const fs = require('fs');

fs.writeFile("/tmp/test", "Hey there!", function(err) {
    if(err) {
        return console.log(err);
    }
    console.log("The file was saved!");
}); 

// Or
fs.writeFileSync('/tmp/test-sync', 'Hey there!');

Source: stackoverflow.com

Nodejs readfile

const fs = require('fs');

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

Fs.readfile

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

Readfilesync

const fs = require('fs')

try {
  const data = fs.readFileSync('/Users/joe/test.txt', 'utf8')
  console.log(data)
} catch (err) {
  console.error(err)
}

Node read file sync

// macOS, Linux, and Windows
fs.readFileSync('<directory>');
// => [Error: EISDIR: illegal operation on a directory, read <directory>]

//  FreeBSD
fs.readFileSync('<directory>'); // => <data>

Source: nodejs.org

Similar codes

0 vote196 views1 answer
Babel start command nodejs
Javascript Node.js
2 votes193 views1 answer
Node print stdin
Javascript Node.js
31 votes196 views4 answers
Nodejs check if variable is undefined
Javascript Node.js
1 vote200 views2 answers
Res.write in node js
Javascript Node.js
0 vote195 views1 answer
Node js post method
Javascript Node.js
0 vote195 views1 answer
Nodejs put array in file
Javascript Node.js
0 vote189 views1 answer
How can I set cookie in node js using express framework?
Javascript Node.js
-1 vote203 views1 answer
How to write to a file with javascript without nodejs
Javascript Node.js
4 votes198 views3 answers
Hh:mm:ss AM to 24 hour time convert in node js
Javascript Node.js
0 vote189 views1 answer
Nodejs get prosses id
Javascript Node.js