Collections and Iteration

A collection is a group of zero or more values stored together, like a list, a set, or a table, and iteration means going through the items in a collection one at a time, usually with a loop, instead of writing separate code for each one. A loop does not have to work through every single item to count as iterating, since code can stop early, for example as soon as it finds the specific item it was looking for. Iterating over a collection does not always follow the collection's own stored order, since some collections, like sets, are not guaranteed to keep any particular order at all, so what "the next item" means can depend on the specific collection.

This explanation is AI-generated and can occasionally be wrong. 🚩 Report