If so, congrats. You have jumped onto the right bandwagon that’s standing high on iOS development popularity ladder and take your project to the top.
Becoming maestros in Swift programming is not effortless. To step ahead, the iOS developers have to refine their capabilities by practicing and following some tips. We have got your Swift development skills upskilling needs covered with a couple of nuggets that certainly help you fix the challenges you are facing and become better at Swift programming.
The Swift tips for novice and adept players that they should know:
What is a playground?
Just the way players need to practice on the playground, the Swift beginners also have a need of the same. iOS has provided a playground for the Swift developers where they can write the logic, test it and validate the ideas without needing to create a new project. It’s a great start for the rookie developers as they get an interactive Swift coding environment where they can learn Swift programming, create prototypes and share the code with others without even kicking off the project.
When to use optionals?
The optionals, either hold valid value or nil in the bag and when it is printed, then the value with some extra text get printed. The optionals can be unwrapped by adding an exclamation mark at the end of optionals name, but this is not a good practice. You should sidestep because the forceful unwrapping leads to application crashes. Beware, the exclamation mark is used in special conditions. So, don’t risk in using it to unwrap the optional value.
What’s the brilliant way to manage the constants?
The hierarchy of constants in the project makes the code not easily readable, so the constants must be organized by creating a file in an enum or structure. With this, it becomes easier to manage all the constants under the hood, maintain the code readability and add a layer of encapsulation around the related constants. This way, when you need to make some changes in the constant that is used in many places in the code, then the changes automatically get reflected in all the places in the program without needing to make changes at every place.
Best practice to use nested function
The nested statements can create clutter, but not the nested functions. Instead, they improve the code readability and reusability. The functions that are used in the body of another function are hidden but can be accessed and used by the enclosed function. The simple function return values and in nested functions, the enclosed function returns the nested function as a value which can be used else wherein the program.
How to craft multiple story boards?
A storyboard is a blueprint of the iOS application that represents the user interface visually wherein the screen’s content and the connections among the screens are showcased. By default, Xcode, create a storyboard, which developers mistakenly use for the complete application. This is the biggest mistake that increases the app’s loading time in Xcode and launching time on the device. It’s better to not rely on a storyboard that Xcode builds for the complete project and create multiple storyboards for different stories in your application.
How to reduce boilerplate code?
During iPhone app development, when developers program in Swift, the function arguments have the default values that are known for reducing clutter. The function calls become shorter when the function call opts to use default values as the default arguments can be eliminated. Going this way, the default values mitigate the boilerplate code by a large amount.
How to validate methods with the guard?
When an action is performed, the developers need data which must be validated by creating the conditions and adding conditional returns. Both the solutions are not up to the par because they are not good at code readability and debugging, and they’re an unnecessary addition of block to return from the function when the condition is not met.
Here, Guard statement excels, which checks one or more conditions, and when any condition is met, then the If block gets executed, otherwise, else part is called. It helps in avoiding nested if/else statement that creates a pyramid doom and reduces the code clutter.
To make the code in the else part transfer the program control out of scope, adding a throw, return, continue or break statement at the end the method of execution is essential. However, using just the If statement is safer that call return statement when the condition is not met.
How to reduce duplicate code?
Swift offers protocol extension,wherein the functionalities can be added to the existing protocol and the extended protocol can be applied to any class that implements it. The protocol extensions avoid the code duplication in the sense that the functionalities are added through the protocol, in place of classes, so the repetitive addition of functionality gets removed, which in turn exclude the code duplication for functionality addition and thus made the code highly reusable. The protocol extension can turn the entire programming paradigm into protocol-oriented.
For the iOS app development finding many programming skill. it requires employing some tips and tactics for swift coding from our export to you have developed a high-performance app.