Check if File/Files Exist

[jaredcoles]

Is it possible to check if the file exists before it is uploaded and then give the option to overwrite the file or to skip it?

I know in the PHP file it checks if the file exists, but I would like to check before it gets to that stage.

I would assume I could put a sweet alert confirm type message in the scripts.js file somewhere but I have not been successful in finding the correct place. I put it in here: "onyxDropzone.on('addedfile', function (file) { " but it still fires off the rest of the dropzone functions regardless of what I do, and it doesn't check for each file.

Any suggestions would be awesome. Thank you.

[jaredcoles]

Basically, how do you add an option to select whether or not to overwrite the file or if multiple files are uploaded how to have options for each file that already exists?