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

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+File handling
+
+- Client(browser)  
+    
+    ```jsx
+    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