Delete unused swatches not working [JS]

[ethank21106708]

var myDocument = app.activeDocument;
function trashUnusedSwatch(){

while (myDocument.unusedSwatches[0].name != "") {

id = myDocument.unusedSwatches[0].id;

sw = myDocument.swatches.itemByID(id);

sw.remove();

}
}

What's wrong here?

[Loic.Aigon]

You may want to try

var myDocument = app.activeDocument;

var unused = myDocument.unusedSwatches;

var n = unused.length;

while (n--) unused[n].remove();

[brianp311 · Accepted solution]

Again, be clear about what's not working. Are you losing some swatches, none? Is there an error? I assume you're calling the trashUnusedSwatch() later on in your script?

I wouldn't rely on the unnamed swatches not being randomly at the 0 position, so this alternative may be better:

var mydoc = app.documents[0];
var mydeleteswatches = mydoc.unusedSwatches;
for (i = mydeleteswatches.length - 1;i >=0; i--) {
    var mydeleteswatch = mydeleteswatches[i];
    if (mydeleteswatch.name != "") {
        mydeleteswatch.remove();
    }
}

[ethank21106708]

Sorry about that. I'm piecing together a file cleaning script to keep my files organized for print. Thanks so much for your help.