How to create file upload like gmail?

Question

How to create file upload like gmail?

3.6k views Asked by Ishwarya Prakash At 24 November 2024 at 14:48

I am having a code with "upload" and done "button". It will select the file on clicking of "upload" and upload the file on clicking "Done" in the given location. But I need to auto-upload file, like Gmail attachment. Can anyone help me out pls

Original Q&A

There are 2 answers

Mohit On 10 June 2015 at 06:28

You can use a 3rd party libraries for implementing drag, drop and auto upload features as well. There is one library which I know is http://www.dropzonejs.com/

**Jaffer Wilson** · Accepted Answer · 2015-06-11 08:01:49

Try this code....

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>File(s) size</title>
<script>
function updateSize() {
  var nBytes = 0,
      oFiles = document.getElementById("uploadInput").files,
      nFiles = oFiles.length;
  for (var nFileId = 0; nFileId < nFiles; nFileId++) {
    nBytes += oFiles[nFileId].size;
  }
  var sOutput = nBytes + " bytes";
  // optional code for multiples approximation
  for (var aMultiples = ["KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"], nMultiple = 0, nApprox = nBytes / 1024; nApprox > 1; nApprox /= 1024, nMultiple++) {
    sOutput = nApprox.toFixed(3) + " " + aMultiples[nMultiple] + " (" + nBytes + " bytes)";
  }
  // end of optional code
  document.getElementById("fileNum").innerHTML = nFiles;
  document.getElementById("fileSize").innerHTML = sOutput;
}
</script>
</head>

<body onload="updateSize();">
<form name="uploadForm">
<p><input id="uploadInput" type="file" name="myFiles" onchange="updateSize();" multiple> selected files: <span id="fileNum">0</span>; total size: <span id="fileSize">0</span></p>
<p><input type="submit" value="Done"></p>
</form>
</body>
</html>

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How to create file upload like gmail?

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