I am trying to sum the total of matches and participants of each cup in this object:I don't know how to sum properties when the object has another object inside it (sorry I didn't learned that yet);
How would I Find all values by specific key in a deep nested object? For example, if I have an object like this:
I'm trying to learn haskell after years of OOP. I'm reading Happy Haskell. It provides this code:I understand how plus and plus' work (they're the same, different syntax). But increment, I don't get.
In a very simple module test where I have the following functionSince I have explicit type annotations, I expect to get [3,5,7] when I load the module test and call func in ghci. However, I got
I'm learning about lambda functions in python through tutorials online. I understand how it works but I came across an example that puzzles me (on this page https://www.w3schools.com/python/python_lambda.asp):
I'm aware of how to get the last argument passed to a function but I'm wondering how to get all the arguments of a function after the first two:
Just curiosity about the standard sqrt() from math.h on GCC works. I coded my own sqrt() using Newton-Raphson to do it!
I'm studying about arguments in R functions, but I have some problem to understand the logic of it.I expected the error message would be return because there is no value of b. d is created under h function but there is no code like b = d which assign a...
I am new to Scala and have a hard time understanding all the ways of declaring and using functions. Can someone please explain, step by step, what is going on here?
I am learning Haskell along some basic functions. I was doing some exercises with Flip, which takes a function of two arguments and evaluates the result flipping the order of the arguments. Consider the function flip flip, I would have thought, following the definition of flip, that it flipped the...