To initialize a struct in Swift, you do not need to write the init method. This is because, by default, there is a memberwise initializer that does the job behind the scenes. For instance: As you can see, this structure does not implement an init method. But you can create a Fruit object like this: […]
Swift How to Initialize a Struct (No ‘init’ with Structs?) Read More »
In Python, a FIFO queue is a linear data structure. It stores objects in a first in first out (FIFO) manner. For example, you can use the Queue class from the queue module as a thread-safe FIFO queue: Output: However, you could use a regular list as a FIFO queue as well. In this guide,
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In Swift, didSet and willSet methods act as property observers. For example: Output: Here assigning “Jack” to name triggered both willSet and didSet blocks. In this article, we are going to take a deeper dive into property observers in Swift. In essence, you are going to learn: Property Observers in Swift In Swift, you can
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The difference between == and === in Swift is: Also, the == operator is overridable for custom types, meanwhile === is not. In this guide, you are going to take a look at what these differences mean and what gives rise to them in Swift. == Operator in Swift The double-equals operator (==) in Swift
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To convert an array to string in Swift, call Array.joined() function. For instance, let’s combine a list of names into a string that separates the names with a space: Output: 1. The Array.joined() Function in Swift The Array.joined() function in Swift can be called to create a string based on the elements of the array.
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In Swift, [weak self] creates a weak reference to self in a closure. This prevents memory leaks due to strong reference cycles. However, to truly understand what this means, you need to understand the following concepts: In this guide, you are going to take a thorough look at each of these concepts. Finally, you are
[weak self] in Swift—Prevent Memory Leaks in Your Code (Easily) Read More »
In Python, you can use the in operator to check if a value exists in a group of values. For example: Similarly, you can check if a value is not in a collection with not in operation (combining the not operator and the in operator): The ‘in’ Operator in Python The in operator works with
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Regression testing is an essential aspect of software development, ensuring that new code changes do not adversely impact existing functionalities. When developers introduce new features or bug fixes, there is a possibility that these changes may unintentionally disrupt how the existing system operates. To mitigate this risk, teams employ regression testing to confirm that the
What Types of Regression Testing Can Be Automated: Insights into Efficient QA Practices Read More »
In Python, the built-in list() function converts an iterable object, such as string or tuple, to a list. For example, let’s convert a string to a list of characters: In this guide, you are going to see examples of using the list() function and how to make a custom object support it. When Use list()
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To check if an element is in an array in Swift, use the Array.contains() function. For example, let’s check if the name “Alice” is in an array of names: Output: Let’s see a more advanced example. Check If an Array Contains an Object with Specific Property You can use the contains() function in a more
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