why do you use "!!" ?

[vsimko]

exiftool.js/exiftool.js

Lines 678 to 680 in 2436100

	function imageHasBeenScanned(oImg) {
	return !!(oImg.imageScanned);
	}

why not just his ?

        function imageHasBeenScanned(oImg) {
            return oImg.imageScanned
        }

same for:

exiftool.js/exiftool.js

Lines 674 to 676 in 2436100

	function imageHasData(oImg) {
	return !!(oImg.exifdata);
	}

[mattburns]

Hmm, inherited code I'm afraid. It's a (pretty ugly) way to ensure something is boolean (or coerce an object into a boolean). I'm not attached to it so if the code still behaves without it I'm happy.