jQuery grab a file uploaded with input type='file'

Question

I want to grab the file uploaded in a <input type='file'> tag.

When I do $('#inputId').val(), it only grabs the name of the file, not the actual file itself.

I'm trying to follow this:

http://hacks.mozilla.org/2011/03/the-shortest-image-uploader-ever/

function upload(file) { // file is from a <input> tag or from Drag'n Drop // Is the file an image? if (!file || !file.type.match(/image.*/)) return; // It is! // Let's build a FormData object var fd = new FormData(); fd.append("image", file); // Append the file fd.append("key", "6528448c258cff474ca9701c5bab6927"); // Get your own key: http://api.imgur.com/ // Create the XHR (Cross-Domain XHR FTW!!!) var xhr = new XMLHttpRequest(); xhr.open("POST", "http://api.imgur.com/2/upload.json"); // Boooom! xhr.onload = function() { // Big win! // The URL of the image is: JSON.parse(xhr.responseText).upload.links.imgur_page; } // Ok, I don't handle the errors. An exercice for the reader. // And now, we send the formdata xhr.send(fd); }

kubetz · Accepted Answer · 2012-01-08 11:47:29Z

Use event.target.files for change event to retrieve the File instances.

$('#inputId').change(function(e) { var files = e.target.files; for (var i = 0, file; file = files[i]; i++) { console.log(file); } });

Have a look here for more info: http://www.html5rocks.com/en/tutorials/file/dndfiles/

This solution uses File API which is not supported by all browser - see http://caniuse.com/#feat=fileapi .

Additional information: A single uploaded file is always in e.target.files[0], at that point you don't need the for loop.

Ilia G · Accepted Answer · 2012-01-08 04:34:00Z

3

This is likely referring to HTML5 files property. See w3 and sample jsfiddle

answered Jan 8, 2012 at 4:34

Ilia G

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2 Comments

Razor Storm Over a year ago

Hm, so javascript image uploading isn't possible with older browsers? Shame :(

Ilia G Over a year ago

You can always use a regular form with target to an iframe. It is less pretty to code but works.

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