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openfirmware/gs_dedupe_queue.js

Created June 11, 2011 22:37
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Remove duplicate songs from Grooveshark queue. Keeps first instance of song. Compares using SongID, so will not catch different uploads for the same song. Tested with Google Chrome 12, Safari 5, and Firefox 4.
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gs_dedupe_queue.js
song_hash = {};
removal_list = [];
for(var i = 0; i < window.GS.player.queue.songs.length; i++) {
var song = window.GS.player.queue.songs[i];
if(song_hash[song["SongID"]] == undefined) {
song_hash[song["SongID"]] = 1;
} else {
removal_list.push(song["queueSongID"]);
}
}
window.GS.player.removeSongs(removal_list);
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Second version is slower, but works with Firefox 4. If you're using Chrome/Safari, 43550f is faster and does the same thing.

@theabraham
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GS.player.player.removeSongs(queueSongIDArray) will remove all songs in the array at once; doing it one at a time is a huge performance drain (I tested it with 500 songs, and it took about 8 seconds!)

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