I'm an asp.net web forms app using, for the first time, Bootstrap 4 as a responsive design framework. I've built a 2 row header navigation with big branding on the left, where the branding spans both rows. Note, I haven't decided on menu placement, which is why you see menus on both left and ri...

I have two datetime objects, x, and y. x.minute or y.minute gives the minute of the hour, such as 15, and x.hour or y.hour gives the hour of the day, such as 2 or 14 (24-hour clock). The following if-statement works, but it's terribly verbose. I would like to more concise way to implement the sam...

I'm looking for the fastest way to determine if a C-style string contains only alphabetic characters. For this question, there are a few assumptions: strlen(c) > 0 Strings are null-terminated Continuous character encoding from a-z and A-Z is not guaranteed, but likely. Here is my attempt: #...

So I created a C++ socket handler using poll and events. The creation of the listening socket and binding is already handled in another method. I'd like to get feedback to the socketLoop() method, if there are any bad habits, unhandled exceptions, bugs or anything else I can improve. I appreciate...

Dutch Partition problem. Partition the given array using the pivotIndex into groups with elements smaller than the pivot, equal to pivot and larger than the pivot. public static void partition(int[] inputArray, int pivotIndex){ int smaller = 0, equal = 0, larger = inputArray.length-1; in...

This code is a cycle method. It gets ran every 500 milliseconds to process the movement for users in the game. I've been told that it's been poorly coded and could use some optimizations but they didn't really go into detail. I'm asking if anyone could leave any suggestions on how I can get this ...

I've noticed that this has been done several times already, but I have come across a particular implementation that can be found from this YouTube Video. Before I came across this video for working with multithreading tasks; I had dove into one of my older projects that were from the era of MS...

Second attempt to solve this rotation problem, implemented a double ended queue as was suggested in a comment of my first attempt. So did I finally do the problem some justice or is there perhaps a better solution? Also anything I can and should clean up? I wanted to thank everyone from my previo...

I have a simple class which currently has some code in the constructor which makes it difficult to ingect and also test. public class FitsParser implements Parser { private Header header; /** * Constructor from a FITS File object and a HDU position. * * @param file The FITS file object from...

I have a multidimensional numpy array "a" from which I select a row randomly. Then perform swapping operation using randomly seleted row with other rows. Given the following array a = np.array([[1,2,3,4,5,6],[50,51,52,40,20,30],[60,71,82,90,45,35]]) Suppose if third row i.e. [60,71,82,90,45,...

I want to calculate the stream function psi starting from a velocity field (u,v) (such that u=-dpsi/dy and v=dpsi/dx). I thus calculate the vorticity omega (such that omega=dv/dx-du/dy) and then solve the Poisson equation del2(psi)=omega. To easily specify the boundary conditions, I choose a suc...

This is my first reasonably large C# program. Considering my code looks like it was written in an esolang to me, I'm guessing I did something wrong at some point. My main priority is readability, although speed is also a plus. using System; public class PrimeSearcher { public static string ...

I have created a vector math header library where the size and data type stored are template values, and I'd like it peer-reviewed please. I have a few main questions: Will using my SizedVectorBase struct prevent template instantiation code bloat like I intend it to? Are the functions I defined...

I have been looking into stuff like method chaining, Cascade-Lambda pattern etc. I have created a class which seems to work fine. However, I just wanted to confirm if this is the best way and the right way to implement this. For the cascade lambda pattern I was unable to use Action action as a ...

This is my first Code Review question so I hope everything is written right. I have the following piece of code which is designed to search a palette. It should return a palette index that is the closest to the passed RGB value. The code works great, from a theoretical standpoint. However, it i...

I just started learning object oriented php with Matt Zandstra's Book: https://www.amazon.com/Objects-Patterns-Practice-MATT-ZANDSTRA/dp/1484219953/ref=sr_1_1?ie=UTF8&qid=1522235005&sr=8-1&keywords=matt+zandstra I wanted to try out his examples and started a php standalone server on my Debian 9 ...

I have implemented a 2D raycast algorithm in SFML to detect walls in a 2D game: How it works Player can move in every direction by w s a d keys. Cursor sets actual player direction vector, which is calculated from atan2() function. Program is calculating next vertical and horizontal side dis...

I'm working through Crafting Interpreters and trying to apply what I've learned in Rust. I've got the lexer working in what feels like a reasonably idiomatic way (hooray!), but I have a feeling it could be simplified. The main part I'm unsure about is the code for reading strings, numbers and id...

I wrote a simple Node.js scraper that gets a Medium post's title and author. I put question comments in the relevant parts of the code. Advice on them, as well as the flow and structure of the program would be great! // Should these be const instead? let cheerio = require('cheerio'); let re...

I have looked online for transposing programs, but have found that they have extreme RAM use for large tables. The RAM use is so extreme I can't run most jobs on my laptop. I also have a Perl program, this uses less memory than online tools, but the RAM use is still extreme (~50 GB RAM for a 8 ...

First of all, I'm new to Scala. I have the following (working) Scala method(s) that has to wait up to 15 sec for a record to be completed. Usually, after 7 seconds, the record becomes complete. So, I put an Iterator that goes to maximum 15 seconds, if the record is complete it stops (I didn't kno...

If I wanted to use two functions: the first one is Input_array, and the second is Show_array. How can I pass an array as a parameter to the Show_array function??

I'm writing a small ETL, which loads data from CSVs, cleans each table a bit, and then loads everything into a PostgreSQL database. I was planning to use pandas for its built-in capabilities, but am wondering whether to subclass DataFrame or whether to just do everything functionally. The subcla...

I have written the below and am seeking any way that I could improve its performance. DROP TABLE [dbo].[#PLUTotals]; IF OBJECT_ID('tempdb..#Level4Totals') IS NOT NULL DROP TABLE [dbo].[#Level4Totals]; IF OBJECT_ID('tempdb..#WasteTotals') IS NOT NULL DROP TABLE [dbo].[#WasteTotals]; I...

Maintain a minimum and max difference as we scan the input array. public static int maxDifference(int[] input){ int maxDifference = Integer.MIN_VALUE, min = Integer.MAX_VALUE; for(int i = 0 ; i < input.length; i++){ if(input[i]-min > maxDifference){ maxDifference = input[i]...

I can't understand what this line does! if (buf[0] == 0x00 && buf[2] == 0x00) { int acc[3]; for (int i = 0; i < 3; i++) { //WHAT DOES THIS LINE DO? uint16_t temp = (uint16_t)((((*((uint8_t*)&buf[3 + i * 2]) << 8)) & 0xFF00) | (*((uint8_t*)&buf[3 + i * 2 + 1]))); //?? acc[i] = (int)*((uin...

What? heartbeatjs is a small light weight library that helps you run periodic heartbeat functions and detects timeouts when they occur by launching events. It was mainly designed for tcp/ip connections, but you can use it with any protocol you want as it designed to be generic. Project The pr...

i want to make an executable key-logger code which gets executed when i enter a pen-drive in computer

I need to find any word in textbox.Text.I have two textboxes,in first textbox i write any sentence, for example Hi,how are you? and in second textbox i write any word, for example "you",then when i click on button find, it must underline that word and say me that there is 1 word with Label. Someo...

public static void printMedian(){ ArrayList sortedList = new ArrayList(); sortedList.add(1); sortedList.add(2); sortedList.add(3); sortedList.add(4); double median = 0; // If our array's length is even if (sortedList.size() % 2 == 0) { int firstIndex = (sortedList.size() - 1) / 2; int seco...

I want to get a recursive list of files in a directory but I want relative paths and not the full paths that Directory.GetDirectories() would return using the AllDirectories search option. This is because I want to move the list of files to another location and perform a custom check on each file...

Here is a currency calculator. This is my first java program > 5 lines. Here goes: There are 4 coins; dragons, stags, pennies, halfpennies. The relationship is as follows: Gold Dragons (Dragon) each is equal to 210 Silver Stags (D); Silver Stags (Stag) each is equal to 56 Copper Pennies (S); C...

After a fair amount of trial and error, I have gotten the animation acting in the manner that I want it, as seen here. However, I always feel like I'm writing way too much and too sloppily when trying to use Core Animation. The animation is as follows: The view begins with a point of light at ...

It may seem a bit obsessive and/or pedantic, but the following script allows me to see when posts are ready for reviewing. addicted-to-cr I developed this UserScript for use with TamperMonkey to allow me to have a tab open for a review queue, and then when an item is ready for review, the tab wi...

This is a minimal reimplemtation of wc. It supports only stdin at the moment and no command line arguments, that's for a later version. This is my first complete Rust program/package, so I'm interested in any comments, including but not limited to: documentation, comments, general style and ty...

Any suggestions or comments? Is my style any good? Initially I struggled with this problem as I found that using the "+=" operator gave the wrong results. I also tried a while loop the first time which was a baaaad idea. But what actually worked was using a static accumulator variable. #include <...

The TypeScript handbook provides a mixin pattern but it requires a bunch of boilerplate, doesn't work for getters/setters and doesn't support defining default values (or any constructor work) in the mixin (only on the composite object). I wrote an alternative mixin pattern for a charting library...

I got sick of every time I make an Http request validating that the response was a success. I did a lot of: if response.class == Net::HTTPOK or if response.is_a? Net::HTTPSuccess I wanted something a little prettier so I came up with the following. I don't write a lot of class extensions li...

The following code fulfills some requirements that are not obvious from the title. First of all, we want to avoid memory allocations, that is why it operates on preexisting lists. Secondly, we don't need to track the items that are unchanged between the two instances of the list. Thirdly, it i...

I am currently having trouble with a project that I have to finish in a few days. In the project, I am given a Sudoku Solver that uses a recursive method. It solves the Sudoku puzzle correctly, but it recalls itself over 87 thousand times. My objective in the project is to optimize it so that th...

Is there a more efficient way to ensure a list is cleared after an iteration than what I currently have written? Apologies for the lack of list comprehension - I usually program in R... import arcpy import csv import os import numpy as np from datetime import date arcpy.env.workspace = "F:\\P...

The snippet below pulls a utf-8 tab-separated file hosted over the network, converts each line into a dictionary based on the first row, and then feeds that line into a function, my_function. The file can be large, so the response is streamed into a temp file and then read back line by line afte...

Below is the WebHook endpoint in its entirety. I have five seconds to acknowledge if the payload is correctly formed. After that, the payload is inserted into a queue for processing. Importantly, it works, but it feels naive outside a Class and without any exception handling or error checking ...