In previous articles, we’ve seen how to improve the architecture of our code through design patterns and the use of SOLID principles. Now we’ll see how to improve our Swift code with higher-order functions. Surely, you’ve used them more than once, but what are they and how can you improve your Swift code with higher-order functions?Swift Higher-Order FunctionsHigher-order functions are functions that take other functions or closures as arguments and that return a function or a closure. These ...