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3 changes: 2 additions & 1 deletion index.html
Original file line number Diff line number Diff line change
Expand Up @@ -1267,7 +1267,8 @@ <h4>Exercise 11: Use map() and concatAll() to project and flatten the movieLists
return video.id;
});
}).
concatAll();
concatAll(); /*My browser throws error (Uncaught TypeError: movieLists.map(...).concatAll is not a function) here
Could you please explain this*/

}
</pre>
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