If I were you I would have stick to the Romeo and Juliet example until the end, instead of adding the robots example. We took a look at how each higher-order function works. Now, this is one of the most debated topics by developers. I’m done reading a couple of books about iOS programming (aside of Chris’s video) and I’m now on my own facing Xcode…. Now that we know how to do absolute for one value, we can use this function to pass as an argument to the map function. A variable is something that can be used to store data, string, number or almost anything. Yes, I can confirm! Having a solid foundation of these concepts makes it easy to learn any programming language, because the concepts are common among the different languages. It is tricky for first time programmers. This next for statement has some mutable variables. thanks for sharing some of your knowledge about programming, and extremely well written. Thanks for the reply! For example, the input [1 2 3 -4 5]needs the output to be [1 2 3 4 5]. Hey Geoffrey, yup, you can spawn an additional “thread” of execution and have parallel threads doing stuff simultaneously.. i assume this is what you mean.. Any suggestion about how I should tackle it? Imagine we have a function that sums two values and then doubles the value. Programming simply refers to the art of writing instructions (algorithms) to tell a computer what to do. Besides, there was hardly anyone to help me since I was the only one among my friends from an IT background. function, and return a list of even numbers: One interesting problem I solved on Hacker Rank FP Path was the Filter Array problem. Later whenever that piece of code is required, any number of times, one can just call for the file name or the function name which is defined and the whole piece of code within the file will get executed. But C, Java, Python were altogether a different world for me. To learn programming requires accepting yourself as beginner when covering new topics. time is long! Turning ☕ into code. But how would we make it pure? By incorporating these key programming concepts, Scratch makes computer science accessible to all learners. Open source and radically transparent. What is a variable? X is assigned the value of the string ‘hello world’ and echo prints whatever is inside of X. In doing so, it promotes problem solving skills, which are important in all areas of life, not just programming. Otherwise, it will not. THE CERTIFICATION NAMES ARE THE TRADEMARKS OF THEIR RESPECTIVE OWNERS. Imagine we have a map of people with their name and age. We will see this in the Higher Order Functions topic. You will just need to learn how to use them in the new language. Well, when you’re building an app, you do this by creating classes. I am a beginner and I understood it. This is a way of interacting with the user.