Milliseid meetodeid ja praktika kasutad olemasoleva koodi parandamiseks ja optimeerimiseks?

To improve and optimize the existing iOS code, I use the following methods and practices:

• Refactoring — simplifying and improving the code structure without changing its behavior. For example, extracting repetitive blocks into functions, improving variable names.
• Using profilers (Instruments) — to identify performance bottlenecks and memory leaks.
• Optimizing algorithms and data structures — replacing inefficient solutions with more suitable ones.
• Applying modern APIs and patterns — for example, using SwiftUI instead of UIKit, if justified.
• Code coverage with tests — to ensure changes do not break functionality.
• Code review — joint analysis of code with colleagues to identify potential issues and improvements.

Example of refactoring:

// Before
func fetchData() {
    DispatchQueue.global().async {
        let data = loadData()
        DispatchQueue.main.async {
            self.updateUI(with: data)
        }
    }
}

// Now (using async/await)
func fetchData() async {
    let data = await loadData()
    updateUI(with: data)
}

This approach improves code readability and maintainability.