Patterns and Practices for Scalable Apps

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Why Good Patterns and Practices Matter

Bug fixes and code upgrades become more difficult to execute
Adding new features can be a real challenge if there's a lack of organization.
Without breaking each layer and functionality apart, it makes testing excruciating.
Without consistency, new developers will have a hard time understanding how the code works.
By using the right patterns, modularizing your code, and maintaining good code quality; you can keep your app development project running smoothly and save money in the long run.

Architectural Patterns

Understand the legacy of Objective-C
How Model View Controller is intrinsic to UIKit
How do Delegation Pattern fits
Why Protocol Oriented Programming works so well with Swift and Testing?
Why Functional Programming makes it easier to build complex functionality?
Why the shift to Model-View-ViewModel?
How Reactive Programming, the Subscriber-Publisher model, and Combine makes sense for UI development?

Modularizing Layers of Functionality

Modularity ensures individual pieces of functionality can work independently.
While each piece of code and functionality remains simple, it is their multitude and integration which is complex.
Each module is an Interchangeable Part.
Modularity allows for use in multiple operating systems and devices.
How does Xcode and Swift allow for modularity
Why Framework Targets are the most mature way still to create independent
Where Workspaces and Projects fit with with Independent Apps and Products
Why Swift Packages are the future

Maintaining Quality Code

Good Architectural Patterns means Easy Testing
Code Coverage is a good metric but not the only one.
Reduce Complexity in your code for easier maintenance
Consistent Styling makes version control and team management easier
Code Reviews Help get an additional set of eyes even though they may be your own.
Continuous Integration of components and apps are the best way to ensure quality code

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