Summary
In this chapter, we learned about the different types of collections and their usage. We saw that we should prefer using generic collections over non-generic collections. Then, we briefly touched on Big O Notation and how to use it to determine algorithmic efficiency. After that, we looked at choosing the right type of collection for what we needed.
After that, we set up a sample database to test the querying and iteration of data using further on in the chapter. Then, we looked at how to choose between using interfaces and concrete classes and choosing between arrays and collections. Next, we looked at indexers and then moved on to look at IEnumerable<T>, IEnumerator<T>, and IQueryable<T> and their performance.
The next topic we looked at was using the yield keyword. We touched on the differences between concurrency and parallelism and mentioned that these will be looked at in more depth in later chapters. Finally, we looked at the difference between...
