Tag: WebDev

Alright I cant explain it properly, I work with HTML since I am just starting and I want to code a website where someone picks an order Pays with it Wants to put a message Money is sent Then the message and the item bought is sent to the owners number or whatever💔 If it works in javascript or anyogher im willingt to learn in can someone pls js tell me how to do it💔💔😢 If this question sounds stupid please feel free to tell me

Hi I think I have implemented a Kalman Filter that runs on R correctly, however when I compute a Likelihood so that I can pass the function to optim and get an estimation on the parameters weird things happen. Creation on the function: runkf_time_varying_alpha_chol <- function(par, p=ncol(S_obs), n=nrow(S_obs), S_obs, Y, P_last){ # Map the observation error covariance R_vector <- exp(par[1:p]) R <- diag(R_vector,p) # Process covariance q_alpha <- exp(par[(p + 1):(2 * p)]) q_beta <- rep(0, p) Q <- diag(c(q_alpha, q_beta)) # Pre-allocate arrays X_prior <- array(0, dim = c(2*p, 1, n)) X_filt <- array(0, dim = c(2*p, 1, n)) P_prior <- array(0, dim = c(2*p, 2*p, n)) P_filt <- array(0, dim = c(2*p, 2*p, n)) I

I'm defining the possible states of a systems and the transitions between them. I want to do this in the shortest form that occured to me, as a map representing all possible states (keys) and the states they can transition to (values). I couldn't find a way to express this in TypeScript. In the values I want to be constrained to the keys of the object itself, and therefore also have type hints towards the possible values. type StateMachine = Record<string, string[]>; const story = { todo: ["inProgress", "done"], inProgress: ["todo", "done"], done: [], } satisfies StateMachine;

I've just moved to a new laptop and installed MS Code, using Ubuntu with WSL. Unlike on the old laptop, when I open a terminal in VS Code, it opens in ~ rather than in the project workspace folder.

I recently setup my laptop with dual boot for Ubuntu 26.04 but I can't get the package to install. I typed: sudo apt extract install NHOS-Flash-Tool-1.1.21.deb but I got invalid operation extract.

at the moment I am using this code snippet to add "20" to the beginning of each cell in a table column: For Each r In Range(TabellNamn & "[Date/Time]") r.Value = "20" & r.Value Next "TabellNamn" is the variable that contains the name of the table that I'm working with and "[Date/Time]" is the name of the column. The column contains, as the name suggests, a date-time formatted value. However, the value is taken from a time stamp that writes the value on the format "YY/MM/DD hh:mm:ss" and the code below is used to format the value to begin with (i.e. it is performed before the code shown above). Range(TabellNamn & "[Date/Time]").Select With Selection .Replace what:="/", Replacement:="-", LookAt:=xlPart, MatchCase:=False .TextToColumns Destination:=.Cells(1), DataType:=xlFixedWidth,

Context I have a Spring Boot application with three interchangeable persistence layers: in-memory, PostgreSQL, and MongoDB. The active persistence is chosen via app.storage in application.properties. My TreeService manages node creation with a simple in-memory ID counter: java @Service public class TreeService { private final TreeRepository repo; private final TreeAlgorithmStrategy strategy; private Long idCounter = 1L; public Node createRoot(String value) { Node root = new Node(idCounter++, value, null); return repo.save(root); } public Node addChild(Long parentId, String value) { Node child = new Node(idCounter++, value, parentId); return repo.save(child); } } The MongoDB document uses the Long ID directly as the document _id: java @Document(collection = "nodes"

The situation I’m thinking about is this: There are “vibe coders” using AI with setups like “10 parallel agents generating tens of thousands of tokens daily.” Sometimes the AI is doing absurdly detailed work too — I even saw a LinkedIn screenshot where an agent was generating the contents of an SVG icon. But I’m curious how experienced/normal programmers mentally handle the extreme efficiency boost from AI. For the past couple of decades, writing software took time. Even something simple like a CRUD controller (“get all / get one / create / edit / delete”) could easily take 20–30 minutes, sometimes hours if you were doing something new. You had to actually think through it, write the boilerplate, structure things, debug, etc. Now AI can generate that same thing in minutes. Your brain barely needs to focus on it before you move on to the next layer — maybe a data-processing library, system architecture,

I'm running into a completely silent 500 error with SpringDoc OpenAPI and could really use some pointers. My Stack: Spring Boot 4.0.5 Java 21 SpringDoc OpenAPI Starter WebMVC UI 2.6.0 Maven The Issue: When I boot up the application, it starts successfully on port 8080. However, when I navigate to http://localhost:8080/swagger-ui/index.html, the UI loads but immediately throws a "Failed to load API definition" popup. Looking at the browser console/network tab, the call to /v3/api-docs is failing with a 500 Internal Server Error. The Catch: There are absolutely zero error logs or stack traces printing in my IntelliJ console when the 500 error is triggered. The server stays quiet. What I've Already Tried: I noticed a startup l

If I have the text below and I want to copy all the text from "The first line" until the end of "The third line": I put a mark on the T of the top line using ma. I move the cursor to the last line, last character. I type y`a. It copies everything except the last character. How do I copy everything including the last character? Some text...The first line The second line The third line I'm using the Vim extension in VS Code but I don't think this makes a difference.