Local file access with JavaScript

Question

Is there local file manipulation that\'s been done with JavaScript? I\'m looking for a solution that can be accomplished with no install footprint like requiring Adobe AIR.<

Answer 1

If you have input field like

You can get to file content in BLOB format:

function add(event){
  var userFile = document.getElementById('file');
  userFile.src = URL.createObjectURL(event.target.files[0]);
  var data = userFile.src;
}