String/collection manipulation cheat sheet

[cretz]

• Most languages have indexOf, substring, etc
• Common operations, e.g. string[len - x] get annoying to memorize if the index will be off by one
• Could be in poster form
• Can be extended to collections in general
• Should spend time have easy to comprehend visual that shows items and easily shows how index math ends up at certain places
• Could be interactive where they can choose the collection size and slide indices across and do some math to ensure they are thinking right