The example flashcards in this post are a bit confusing, and not really aligned with spaced-repetition best practices. First of all, you really want the "answer

The example flashcards in this post are a bit confusing, and not really aligned with spaced-repetition best practices. First of all, you really want the "answer" side of a flashcard to be as simple as possible so that it's unambiguous what you're expected to recall, and you can make that determination as quickly as possible. Then, the "question" side should be simple as well, to speed up reviewing and make the knowledge that's being committed to memory as generally-applicable as possible. So I'd fix the first example to say something like: no-clobber note: existing files or objects at the destination are not overwritten, and are reported as being skipped. note: makes an extra GET request before uploading an item. this may adversely impact small transfers, or save data if large transfers can be avoided. For the second example I'd simply adjust the code sample as: var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"]; var citrus = /* ??? */; with only the `fruits.slice(1, 3);` part on the answer side.