Answers for "fs saving to file javascript"

js save files

//javascript
function download(text, name, type) {
  var a = document.getElementById("a");
  var file = new Blob([text], {type: type});
  a.href = URL.createObjectURL(file);
  a.download = name;
}
//html
<a href="" id="a">click here to download your file</a>
<button onclick="download('file text', 'myfilename.txt', 'text/plain')">Create file</button>

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);
            }
      });