Page 62: In the listing, there’s a semicolon missing after the empty variable declaration. It should read:
var bestAlbumsByGenre = [];
Page 62: In the final code block on the page, there shouldn’t be an underscore or a semicolon in the comment. It should read:
bestAlbumsByGenre[0][1]; // returns “Patsy Cline:Sentimentally Yours”
Listing 4-3 Where it says indexof, it should actually be indexOf