In Swift, a lazy variable is a variable that gets initialized only when it is called for the first time. To put it another way, using a lazy variable, you can delay the initialization of stored property. This is a great feature due to the limitations in the computing power. A lazy variable does not […]
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In Swift, a closure marked with @escaping means the closure can outlive the scope of the block of code it is passed into. In a sense, @escaping tells the closure to “stay up even after the surrounding function is gone”. But why is this useful? Let’s say you are performing an (asynchronous) network request such
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In Swift, both Float and Double are used to represent decimal numbers. The difference between a Float and a Double is in the precision: As a rule of thumb, you should use a Double in Swift. Swift Defaults to Doubles By default, Swift uses Double when it faces a decimal number in the code. You
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In programming and computer science, the word “atomic” means “one at a time”. Atomic operations are important in programs where a shared resource, such as a database, is accessed by multiple threads. An atomic operation is an operation that appears to be instantaneous in the eyes of the other threads. In other words, you cannot
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During the past couple of years, NFT has become one of the 21st-century buzzwords. NFTs have gained a lot of hype as a form of digital art that sells for millions of dollars. To make sure you don’t miss out on the crypto and NFT conversations, here is a complete list of the most common
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In optimal circumstances, it will take around 500-1000 hours to become a job-ready programmer. If you practice 8 hours a day on 5 days a week, this means 13-26 weeks. But this is a ballpark estimate. Your mileage may vary. There are some companies that offer apprenticeships where you start from zero and become a
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Are you interested in becoming an iOS app developer? What a great choice! Developing mobile apps is a lucrative business. iOS development involves solving customers’ problems using creativity and careful thinking. Developing apps is both fun and challenging. Mobile app development is still relevant and it is an in-demand skill to possess. To become an
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Python is a super-popular programming language. It is still relevant and trending for 30+ years since its first stable release. But what makes Python such a popular language? First and foremost, Python is an extremely versatile language. With Python, you can do things like: Each of these skills is in high demand in the job
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Python has been an immensely popular programming language for a long time. This is mainly due to its easy-to-learn syntax and versatility. You can use Python in almost any area of software development. For example, you can work with: And much more. This makes Python also one of the hottest programming languages in the market.
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To join a list of strings into a string in Python: For example, let’s join a list of words by a dash: Output: Perhaps the most common question is how to join strings into one string separated by space. To do this: Here is how it looks in code. Output: If you were looking for
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