Javascript: variable file from string

Question

Hopefully this is a pretty simple question for those who know javascript but I couldn't figure it out. Basically I have a save file dialog box created with this:

<div>
<input type="file" id="file" onchange="loadFile(this)">
</div>

It is linked to the "loadfile" function shown below:

function loadFile(input) {
  var file = input.files[0]
  var url = file.urn || file.name;

  ID3.loadTags(url, function() {showTags(url);}, {tags: ["title","artist","album","picture"],dataReader: FileAPIReader(file)});
}

I am trying to replace the line

 var file = input.files[0]

to be a file from a string (specified path) instead of relying on the file browser dialog. I have tried something like this:

 var file = files("song.mp3")

but the resulting function will not work. I am guessing that my variable file isn't of the right type. How do I get it to be the same type as the selected file from the file dialog box?

Thanks in advance!

PS: I am trying to link my script to a path on the server not the client.

Quentin · Accepted Answer · 2014-05-15 20:48:21Z

1

If you want to access data from a website, then use the XMLHttpRequest object instead of the Files API.

answered May 15, 2014 at 20:48

Quentin

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3 Comments

Eric F Over a year ago

Sorry for the confusion but I am trying to link my script to a file on the server not the client. I know this will most likely need to be done with some php but am unsure how to.

Eric F Over a year ago

So var file = XMLHttpRequest("song.mp3") ?

Quentin Over a year ago

Err… no, but there are many guides to XMLHttpRequest so I'm not going to write another one here.

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