Answers for "fs write different content into file node.js"

javascript fs write file with folder

var path = require('path'),
    fs = require('fs');

function ensureDirectoryExistence(filePath) {
  var dirname = path.dirname(filePath);
  if (fs.existsSync(dirname)) {
    return true;
  }
  ensureDirectoryExistence(dirname);
  fs.mkdirSync(dirname);
}

write files in Node.js

var fs = require('fs');  
var txt = '\n' + tkn_psid_id + ':' + assetUrl;
var folderName = '/duplicates/bugging/videobug/' + tkn_psid_id + '.txt';
fs.appendFile(folderName, txt, function (err) {
       if (err) {
                console.log('Append Error');
           } else {
                   console.log('DuplicateFolder' + folder);
            }
      });