Re: [FileAPI] File.slice spec bug

On Tue, Apr 12, 2011 at 5:35 PM, Jonas Sicking <jonas@sicking.cc> wrote:

> No, but feature testing only when you're about to use the function
> shouldn't be a problem, no?
>

I'd much rather be able to detect this once, in a self-contained,
code-and-forget backwards-compatibility block, for example something like:

(function() {
    var bb = new BlobBuilder();
    bb.append("abcd");
    if(bb.getBlob().slice(2, 2).size == 2)
    {
        var origSlice = Blob.prototype.slice;
        Blob.prototype.slice = function(start, end) { return
origSlice.apply(this, [start, end - start]); }
    }
})();

I could monkey patch slice to do this test each time, of course, but then
instead of a nasty monkey patch only applied on old browsers, it'd be
applied to every browser.

-- 
Glenn Maynard