Is it possible to remove individual values from an file input multiple element?

I'm trying to remove or somehow nullify a single value in a single input for multiple files. Let's say we have four values...

<input id="input" multipl开发者_StackOverflow中文版e="multiple" type="file" />
input = document.getElementById('input');
// So our four files are:
input.files[0];
input.files[1];
input.files[2];
input.files[3];

if I wanted to remove [1] from the array without disrupting the others, can I do it? I've tried splicing, setting the value to NULL, changing the name etc. None of this stuff seems to work (while the element remains readonly = false) Jquery's remove function removes the entire element so that doesn't work. Any help is greatly appreciated!

It’s readonly.

I'm curious to why splice does not work. Normally it's very easy to do this:

var list = [4,5,6];
list.splice(1,1);
console.log(list); // [4,6]

So if this doesn't work, I'd like to know what the results are.

Edit

Btw, you need to use:

var input = document.getElementById('input');

You have to declare your variables with 'var'.