The Blob.size property returns the size in bytes of the Blob or a File.
Syntax
var sizeInBytes = blob.size
Value
A number.
Example
// fileInput is a HTMLInputElement: <input type="file" multiple id="myfileinput">
var fileInput = document.getElementById("myfileinput");
// files is a FileList object (simliar to NodeList)
var files = fileInput.files;
for (var i = 0; i < files.length; i++) {
console.log(files[i].name + " has a size of " + files[i].size + " Bytes");
}
Specifications
| Specification | Status | Comment |
|---|---|---|
| File API The definition of 'size' in that specification. |
Working Draft | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| File.size | 5 | 4.0 (2) | 10.0 | 11.10 | 5.1 |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| File.size | No support | No support | No support | No support | No support |