# All Questions

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### Unit test for a registration form using C# and Selenium

I would like to know if the below code written in C# Selenium to do Unit Test is efficient and readable. Is there any particular way to do Unit Test. Else suggest me where I can learn to do better ...
• 1
518 views

### JavaScript front end for Odin Project book library database

I am currently working on The Odin Project and have reached the JavaScript Part. There is a project, to create a Website that serves a a library. You can add a book and it appears on the site as a ...
• 97
30 views

### javascript calculation of person ages and heights

I need to take sum of all the person's ages and heights. Input Array: ...
• 101
1 vote
62 views

### Need someone to evaluate my Encryption Decryption Algorithm

I have been trying for so long to code an encryption/decryption algorithm using the modulus operator. Basically my code does a basic mathematical operation on given text and key then do a modulus 255 ...
1 vote
30 views

### Update a gamer and its child objects using Entity framework 6.0 [closed]

The below logic is working fine. But is there any way to optimize this logic ? Gamer is the root level object, it will have Characters. Character will have set of Skills & a weapon I want to ...
47 views

### Creating a 3rd party League of Legends application to mimic chat and preemptively filter for profanity to prevent misconduct

My small project I'm working on is meant to be a League of Legends 3rd party application ran along side it to preemptively warn the user before they go about making the incorrect decision to trash ...
1 vote
61 views

### USACO Training - Section 1.5 - Arithmetic Progressions [closed]

I am working on the USACO problem Arithmetic Progression. Here is their problem statement: An arithmetic progression is a sequence of the form a, a+b, a+2b, ..., a+...
• 158
67 views

### Count the number of objects created statically and dynamically in C++

I have written below program to count the number of static and dynamically created object of the class. ...
1 vote
57 views

### Node.js batch processing

Batch processing steps: When a job is posted, push it to the queue. Get the required number of items from the queue and put it in the ...
• 370
21 views

### Shortest path in dags: Part 3/3 - the demo benchmark

Part 1/3 Part 2/3 In this post, I will present the benchmark code from this project. com.github.coderodde.graph.benchmark.DemoDagProvider.java: ...
• 26k
69 views

### Price calculator for a dispensary

I'm making an out the door calculator for my dispensary. As it stands now the program works 100%, im planning on adding a GUI and such in the future but right now im focused on not have a god class ...
• 31
27 views

### Nametag fiddle: matching data with its rules for display

The problem statement is as follows: I have a database of name tag data. I want to display these name tags to the screen. Each item of information on a nametag has certain rules for its display. Here ...
• 501
41 views

### Virtual memory manager, physical memory manager and buddy allocator

I'm writing memory manager for my toy operating system and I would like to get some feedback. There is physical memory manager, which uses bitmap, virtual memory manager which uses buddy algorithm for ...
• 21
1 vote
55 views

### Haskell function that executes each action until a predicate returns True

The following function executes each action from the list until a predicate returns True. I have a feeling that this function can be rewritten using ...
1 vote
69 views

### game interface setup

I've learned that magic numbers are bad in code. However, should the coordinates, and rotation angles of all the sprites be stored in variables? Is the convention in game development to leave those ...
• 21
123 views

### Program that calculates the first n powers of x

I am a beginner. I wrote a C program that calculates the first n powers of x and I don't even know if this is legit C code or ...
1 vote
56 views

### Shortest path in dags: Part 2/3 - the preprocessing and shortest path algorithms

Part 1/3 Part 3/3 I have this library for performing shortest path queries on dags (directed acyclic graphs). This post presents the shortest path algorithms and the topological sorters. Two ...
• 26k
1 vote
45 views

### Shortest path in dags: Part 1/3 - the graph data structure

Part 2/3 Part 3/3 I have this library for performing shortest path queries on dags (directed acyclic graphs). This post presents the graph data structure: ...
• 26k
1 vote
107 views

### Iterate and assign weights based on two columns (python)

FI_name ISN Sector Industry REC INE02 PS FS HDB INE03 PR FS ABC INE04 PR FS RHC INE05 PR CO ZHE INE06 PR FS HSE INE07 PR FS ZAK INE08 PS MT HGB INE09 PR FS YUJ INE10 PR MT WSD INE11 PS FS ...
• 13
1 vote
60 views

### Calculates the multiplicative persistence of a given number // Returns the smallest number with a given level of MP (Numberphile Challenge)

I was watching this Numberphile video: https://youtu.be/Wim9WJeDTHQ on multiplicative persistence (multiplying digits of a number over and over until one digit remains). I decided to take up the ...
1 vote
42 views

### Pulling images from a MongoDb database

I have a method that on click produces an excel file with information in it. I have been asked to pull images from the data base and add them within the excel file as well. This is how I am pulling ...
• 145
1 vote
39 views

### Simple rust ECS with no dynamic dispatch

I'm trying to write a minimal, high performance uncomplicated ECS for a simple game in which I have a good idea of all of the Entity and Component types from the get-go. I want to take advantage of ...
• 313
13 views

### best way to check if every part of a stepper is valid and emit an event then

I want to check if each part of my multipart form is valid inside my stepper component, if it's the case I intend to emit an event that can be handled by the parent component. To do this, I have made ...
• 101
1 vote
44 views

As an exercise, I found a basic way of updating pages without refreshing, partially mimicking the behaviour of SPAs and routing libraries such as React Router. I was not looking for something as ...
• 53
57 views

### How can I optimize my code and reduce execution time? [closed]

I would like to see if it is possible to optimize the following code. Indeed before I was in php and the execution was much faster. but I had to switch to java and unfortunately the execution of the ...
36 views

### Bash script to take user input to set AWS envrionment variable the first time and automatically in subsequent calls

Background Our team has a utility called envmgr to set aws iam roles. The credentials are only good for 4 hours or so. As such, I have a number of scripts that call the command ...
• 279
1 vote
55 views

### Tic Tac Toe - Python

I made a program that allows a player to play Tic Tac Toe against a computer. Of course, I didn't make it analyse the slightly harder algorithms, as I am just a beginner at programming. Are there any ...
• 111
1 vote
18 views

### Converting future.get() to CompletionStage.whenComplete()?

I currently have some code in Java which looks something like this, but I want to refactor this. ...
• 279
795 views

### Filter an array, but remove the filtered elements

I needed a PHP function that would filter values from one array into a new one, while also removing those values from the original array. After looking through the docs, I didn't see any such function,...
• 113
1 vote
57 views

### Output last occurrence of match in file

Hi this is my problem statement File 1 contains lines like this : aaaa 1 aaaa 2 bbbb 1 bbbb 2 bbbb 3 cccc 1 cccc 2 dddd 1 dddd 2 File 2 contains ...
67 views

### Slot machine game using python

I made a 3 reel slot machine using the pygame library in Python. This is what I have so far. I want to improve it to make it work for a 3x5 slot machine with multiple paylines, right now it is a 1x3 ...
1 vote
30 views

### DOM scrolling implementation [closed]

Which code is considered better to write to implement smooth scrolling for the page? 1st, with optional chaining: ...
• 51
295 views

### C++ disk-file memory resource

After writing a C++ simulator for malloc() and free(), (C++ imitation of glibc malloc(), free()), I thought: "My simulator ...
• 1,583
57 views

### Tic-Tac-Toe - JS + HTML

Coming from a python background, I recently started learning django, currently at the javascript section. This tic-tac-toe code is to familiarize myself with javascript basic concepts. No application ...
• 133
28 views

### nat -> nat uncountability proved in Coq

I am learning vanilla Coq (not ssreflect). That's my way to prove that { nat -> nat } is uncoutable: ...
• 163
38 views

### Function to find the first pair where the sum zero. using 2-pointers approach

Here is the function called sumZero, where it should return the sum of any two numbers in the array to sum upto zero. where the array is a sorted array. My approach: Using 2 pointers approach, calling ...
• 131
83 views

### Determine when a file is no longer being changed by hashing

I have a requirement to essentially scan a filesystem on any kind of filesystem and move a resource whenever it is ready. To do this I have the following code ...
814 views

I created a class designed to validate passwords based on user defined criteria. Each PasswordValidator object objects a minimum and maximum password length, a character blacklist, as well as ...
21 views

### how can I code script that use the hashlib python script to retrieve multiple files md5 within selected directory [duplicate]

I am not sure what I am doing wrong as this code I am trying to make function which collects the md5 of all files within the selected folder and then prints it ...
1 vote
23 views

### JavaScript webworker sandbox

I am trying to make a JavaScript sandbox thru webworkers. This sandbox is only used for very basic JavaScript, so I want to strip all of the global API's and built in functions, such as ...
• 11
24 views

### All pairs/Cartesian multiplication of iterators in rust

crustaceans! This is my attempt at creating an all_pairs operation for rust iterators. The code has to generate a new iterator which, when iterated, produces all ...
• 121
159 views

### C++ imitation of glibc malloc(), free()

I wrote a C++ simulator that performs algorithms for glibc malloc() and free(). The core logic is basically the same, with the ...
• 1,583
91 views

### Card game using OOP

I already know that I shouldn't really use the global function and that how I judge who wins is also really inefficient so I would appreciate improvements for that. I watched a tutorial about Object ...
• 31
208 views

### A matrix class using const members

I've long used a simple matrix class with a vector and rows/cols for the shape. But I've always disliked getters even when necessary to prevent exposing invariants. Then came c++20 which provided the ...
• 173
1 vote
57 views

### Testing string membership using (in) keyword in python is very slow

I have the following text dataset: 4 million paragraphs of length between (10-60 words each). ...
37 views

### My first rust program: transposing a CSV

Here's the result: ...
• 131
47 views

### Project Euler 11 Haskell - Largest product in a grid

Intro I have been learning haskell and functional programming using random Project Euler problems. Currently, I have solved Problem 11. What is the greatest product of four adjacent numbers in the ...
38 views

### better localStorage api

I wasn't quite happy with the way localStorage handles non-string values, for example ...
• 319
71 views

### Bash script using SSH to sum disk usage on NetApp

I have tried to come with below bash script which is at least working for me, i know its not perfect and that why i want some review and suggestion to make it more aligned with bash practices. I'm ...
1 vote