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What do I mean by access patterns? It's the underlying commonality between the collections. It answers the question: How will we access our information?
Sequential Access Pattern
A super common way to access items in Clojure collections is through the seq abstraction. The seq abstraction gives us the items in a collection one at a time. But what order do those come in? The order is determined by the collection itself. We look at the different options for order. which largely determine the choice of collection type we use.