javascript dataurl to blob

florinrelea answered on September 20, 2020 Popularity 9/10 Helpfulness 7/10

answer javascript dataurl to blob

javascript dataurl to blob

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function dataURItoBlob(dataURI) {
  // convert base64 to raw binary data held in a string
  // doesn't handle URLEncoded DataURIs - see SO answer #6850276 for code that does this
  var byteString = atob(dataURI.split(',')[1]);

  // separate out the mime component
  var mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0]

  // write the bytes of the string to an ArrayBuffer
  var ab = new ArrayBuffer(byteString.length);

  // create a view into the buffer
  var ia = new Uint8Array(ab);

  // set the bytes of the buffer to the correct values
  for (var i = 0; i < byteString.length; i++) {
      ia[i] = byteString.charCodeAt(i);
  }

  // write the ArrayBuffer to a blob, and you're done
  var blob = new Blob([ab], {type: mimeString});
  return blob;

}

Popularity 9/10 Helpfulness 7/10 Language javascript

Source: stackoverflow.com

Tags: blob data-url javascript

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Contributed on Sep 20 2020

florinrelea

0 Answers Avg Quality 2/10

javascript dataurl to blob

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