Part 3 Collections

 

Collections are objects that store and organize other objects. In this part you look at unique features and capabilities of collections, such as arrays, sets, and strings. However, you also delve into what is common across all collections, such as iterating over all the elements in a for loop and higher-order functions, such as map, filter, and reduce. I briefly covered collections in the part 1, but here I go deeper on each topic.