Advertisements I want to have multiple data containers for the same object with the same reference (pointer), and can’t figure out how to achieve that in Rust. Go can simply use reference to the object as below: type container struct { id int status string } m1 := make(map[int]*container) m2 := make(map[int]*container) c := &container{id:… Read More Shared object reference between different Rust containers without copy
Advertisements All. I am a bit new to Python. I have recently taken a course and followed a few tutorials. I am trying to explore on my own and just make "something". This is for a texted-based RPG. I am trying to read the users input from a pre-existing list I already created in case… Read More Is it possible to use a python list as a choice?
Advertisements I have been tasked with creating an inventory manager in python, and one of the required is to define the following function within the class: __str__ – This function returns a string representation of a class. The class refers to a file (inventory.txt) which has the following format: Country,Code,Product,Cost,Quantity my code thus far is… Read More How to use __str__ function to return a string representation of a class
Advertisements I have my ‘Person’ class as follows – public class Person implements Comparable<Person> { private int marks; private String name; Person(int marks, String name) { this.marks = marks; this.name = name; } public int getMarks() { return marks; } public String getName() { return name; } @Override public String toString() { return "Person: Marks… Read More Can Collections.sort() take treeSet as first argument? If not why?
Advertisements I have a loop where I update a value that changes the view. In this example I want the updates to happen one at a time so you see it ripple across the row, but they all happen at once. struct AnimationQuestion: View { @State var colors = "🟪🟨🟧🟦🟥🟫⬛️🟩⬜️".map { String($0) } @State var… Read More How do I animate changes one at a time in SwiftUI on a button tap?
Advertisements I want to make the three buttons span the entire page equally, does anybody know how? <div class="mainNavigation"> <table> <tr> <td> <form action="webPages/index.html"> <input type="submit" value="Purchase Used Cubes" /> </form> </td> <td> <form action="webPages/index.html"> <input type="submit" value="Purchase Cube Products" /> </form> </td> <td> <form action="webPages/index.html"> <input type="submit" value="Purchase Cube Repairs" /> </form> </td> </tr>… Read More How to make three buttons in one line span the entire page?
Advertisements Hey guys! I’m just getting into c++ and after learning stuff about reference and value pass I’ve come across a problem. So basically I’m trying to copy a map and I do so in my method. So far the size of the 2 maps are the same. The problem comes when I insert some… Read More Passing c++ map by reference and see changes after insert
Advertisements I am fairly new to HTMl and CSS. I had my footer stuck to the bottom of the page no problem and then something changed and I cannot figure it out. When I go to a page without a lot of content the footer sits in the middle of the page. On pages with… Read More Footer is floating in middle of page despite CSS
Advertisements According to this system calls table, linux system calls are different across architecture, but IMO syscalls are higher level encapsulation which do not depent on any specific architechture. Why is it designed this way? In a specific case, riscv64 linux doesn’t have mkdir, instead it has mkdirat, but weirdly it doesn’t have rmdir or… Read More Why are linux system calls different across architectures
Advertisements Suppose the following tibble tibble( examform1 = c("Bla bla bla pass/fail", "Bla bla bla 7 point scale", "Bla bla pass fail"), examform2 = c("passfail bla", "7pointscale bla", "Bla bla") ) # A tibble: 3 × 2 examform1 examform2 <chr> <chr> 1 Bla bla bla pass/fail passfail bla 2 Bla bla bla 7 point scale… Read More Rowwise partial match in all columns of a tibble