joplin-notes/joplin notion extension/Web Development/Javascript/File handling.md

File handling

• Client(browser)

  const encryptedFileInput = document.getElementById("encryptedFileInput");
  const encryptedFile = encryptedFileInput.files[0];
  
  // Read the encrypted file
  const encryptedData = await encryptedFile.arrayBuffer();
  

• arrayBuffer vs blob blob is immutable and is the data type when we submit the file in form in client(browser) arraybuffer is the binary representation of file as thats how fs.readFileSync returns it