Are you preparing for a job interview or an exam that involves knowledge about Python? Or do you want to quickly go through common topics of Python? Here is a list of 50 Python interview questions and answers. The list is in no particular order. I hope you enjoy it. 1. Name Differences Between a …
Top 50 Python Interview Questions of 2023 (with Answers) Read More »
Python is a popular and beautiful programming language used in data science, web development, maths, and so on. In addition to learning the basics, there are lots of easy-to-understand advanced Python features you need to know. By advanced, I don’t mean hard. These topics are really important but not crucial when learning the basics of …
Here’s a list of 50 Swift interview questions and answers. These questions focus on Swift programming and iOS app development. You need to know the answers to these before you get a chance to show your skills in front of a job interviewer. Also, feel free to use these Swift interview questions to practice for an exam. …
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To sort a Python list, use the built-in sort() method. For example: Output: Or to reverse sort a list of numbers, you can do: These two are some basic usage of the sort() method in Python. But you can do a lot more with it too, such as: To learn how these and much more, …
Python string is a commonly used type. There are many things you want to do with the strings in your Python projects. This is why Python comes in with useful built-in string methods. To be more specific, there are 47 of them. These Python string methods can save the day when working with strings. In …
Dealing with strings in Python is common. One popular operation you may want to perform on a string is to change the case to upper or lower case. To convert a Python string to lowercase, use the built-in lower() method of a string. To convert a Python string to uppercase, use the built-in upper() method. …
1. Alias With the command line, you can create an alias for a command. As an example, let’s create an alias surf that opens up medium.com. To open up medium.com via the command line you need to use open [URL] syntax: To create an alias surf for this command: 2. Create a new alias surf by adding the following into the .bash_profile: 3. Save the file and restart the …
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Lambdas in Python are anonymous functions that take any number of arguments but only contain a single expression. As an example, here is a lambda that multiplies a number by three: This lambda isn’t particularly useful as-is because there’s no way to call it. However, you could assign it to a variable and then call …
In Swift, properties are either stored properties or computed properties. Getters and setters in Swift are the methods a computed property uses to either set or get a value on-demand. Syntactically, accessing a computed property looks the same as accessing a stored property. For instance, let’s access the computed property kilos of a weight instance: The point is that it runs a piece …
Swift get set—How Computed Properties (Getters & Setters) Work? Read More »
Enums in Swift tie related values together in a type-safe way. For example, instead of calling a direction “Up” or “Down” in your program, you should create an enum that couples these options together: Then you can call Direction.Up or Direction.Down. A Common Use Case for Enums in Swift Say you have an app that needs to control the direction of the game character …
