Add and Remove Track

[jlag34]

bwa-u3-jammming-prj/src/Components/App/App.js

Lines 26 to 40 in ca0acf6

	addTrack(track) {
	if (this.state.playlistTracks.find(savedTrack => savedTrack.id === track.id)) {
	return ;
	} else {
	const addedPlaylistTracks = this.state.playlistTracks;
	addedPlaylistTracks.push(track);
	this.setState({playlistTracks : addedPlaylistTracks});
	}
	}
	removeTrack(track) {
	const originPlaylistTracks = this.state.playlistTracks
	const removedPlaylistTracks = originPlaylistTracks.filter(savedTrack => savedTrack.id !== track.id);
	this.setState({playlistTracks : removedPlaylistTracks});
	}

Great job on your add and remove track. Both are doing what they should. For your removeTrack, try doing something like this:

removeTrack(track) {
  const newPlaylist = this.state.playlistTracks.filter(savedTrack => savedTrack.id !== track.id);
  this.setState({playlistTracks : newPlaylist});
}

I basically got rid of the first line you had.