I’m trying to figure out a JavaScript code scope problem and I have simplified this to const first = () => { console.log("first"); } const second = (first) => { first(); console.log("second"); } const third = (second) => { second(); console.log("third"); } Based on three functions above, I am supposed to write code using only… Read More How should I write the JavaScript code such that the output will be "first", "second" and "third"

I am looking to create a some functions that create a result in a variable within the scope of a function and then pass that variable from one function to another function. as a simplified example, say I wanted the test1 function to combine two strings and then have another function that can take an… Read More Function of Functions – pass variable between scopes – powershell

This error occurred FATAL ERROR: test case CRASHED: SIGABRT – Abort (abnormal termination) signal ::error::Error: Exit with code: 134 and signal: null when I was testing a string constructor "String::String(const char* other)" String::String(const char* other) // the constructor I’m talking about { if (other == nullptr) { String(); } else if (other != nullptr) {… Read More "FATAL ERROR: SIGABRT" when defining a string constructor in a custom String class

I have a std::string and pass that by reference to a function. The function dereferences the parameter (pointer) into a local std::string for ease of working. I update the local string’s value and then update the pointer. Have I just pointed to something that’s gone out of scope? Or have I updated the underlying value… Read More C++ pointer to std::string updated in function – scope issue? (ESP32)

I’m perplexed as to why I need to selectively refer to an instance variable with "self" inside a case statement inside a class method: I have a class with an instance method @working_dir: class FileSystem attr_accessor :sizes, :working_dir attr_reader :input def initialize(input) @input = input.split("\n") @sizes = Hash.new(0) @working_dir = [] end … end I’ve… Read More Ruby: Working with instance variables within a case statement

hello im new to programing with c# and i wanted to re-create an old proyect i made in scratch but with c# but i have several problems with the code i wrote. int qny = 4; int ADD = 1; int B = 1; string C = " "; for (int i = 0; i… Read More cannot be declared in scope (among other errors)

I am trying to figure out how to define a Variable which is a member of a class in C++, Outside of the normal class body. It may be inside of a Function, or outside of the class. Is this possible. What I need is that the variable should be a member of the class… Read More How to define class attribute after creating class

The code is creating a random number from a low value and a high value supplied by the user. Why, when printing the value of the comp_num inside the function it returns the correct value but when printing it at the end of the sequence it is 0. import random comp_num = 0 def generateNumber():… Read More Why is the global variable not showing the correct value

main.scala: import java.time.LocalDate object OptionAnswer { def main(args: Array[String]): Unit = { case class Score( name: String, // 学生の名前 english: Int, // 英語の点数 math: Int, // 数学の点数 science: Int, // 理科の点数 date: LocalDate // 受験日 ) val scoreOfAlice = Score(name = "Alice", english = 77, math = 74, science = 26, date = LocalDate.of(2020, 1,… Read More What is the error "not found: type Score"?

i have 4 views and i want to change their height and width to the same value, how can i reduce the amount of code here? private fun changeSize() { with(binding) { with(leftBotIv) { layoutParams.height = height layoutParams.width = width } with(leftTopIv) { layoutParams.height = height layoutParams.width = width } with(rightBotIv) { layoutParams.height = height… Read More How to use with to multiple params Kotlin?