Gitflow is a collection of command line git extensions to automate a branching strategy introduced by a 2010 blog post entitled ‘A successful Git branching model’ by Vincent Driessen , This provides a robust framework for managing larger projects. - Install Gitflow: you can install gitflow easily on macOS using “Homebrew” by running…

GCD is Apple’s implementation of C’s libdispatch library. its purpose is to queue up tasks — either a method or a closure — that can be run in parallel, depending on availability of resources; it then executes the tasks on an available processor core. We use GCD for managing concurrent…

Error handling is the process of responding to and recovering from error conditions in your program. Swift provides first-class support for throwing, catching, propagating, and manipulating recoverable errors at runtime. Some operations aren’t guaranteed to always complete execution or produce a useful output. Optionals are used to represent the…