In this chapter, we've seen how to use pattern patching to enhance our ability to make decisions and assign variables. In particular, we've learned the following:
- How to assign part of a data value to a variable by matching the whole value to a pattern that matches the part we're interested in to a variable name
- How to use if let and else if let to decide whether a particular branch of an if chain should run
- How to use match to check a single value against multiple patterns
- How to use _ as a don't care in patterns
- The difference between a pattern that matches a borrowed value and a pattern that borrows a matched value
- How to match patterns for complex, nested data structures
- Surprises that can arise when we use pattern matching, and how to deal with them
We'll be seeing more pattern matching in the next chapter, when we look at enumerations,...
