Ruby: Way to check if array has been created and if not create empty array
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Click 'more repetitions' when not certain of the answer.
The card will come up again after the next 6 cards.
Click 'Know It' when you have the answer memorized.
This moves the card out of the drill and brings the next card in to the 7.
Signup to so YoYoBrain can track progress and automatically schedule reviews day based on your history and brain research.
It is incredibly effective for learning. Try it.
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