var

var fs = require('fs'),
    convertFactory = require('electron-html-to');
 
var conversion = convertFactory({
  converterPath: convertFactory.converters.PDF
});
 
conversion({ html: '<h1>Hello World</h1>' }, function(err, result) {
  if (err) {
    return console.error(err);
  }
 
  console.log(result.numberOfPages);
  console.log(result.logs);
  result.stream.pipe(fs.createWriteStream('/path/to/anywhere.pdf'));
  conversion.kill(); // necessary if you use the electron-server strategy, see bellow for details
});

var= general varibale in javascripts