I have been struggling for hours and couldn’t figuring out how to increment i using useState([]). I know useState([]) is an asynchronous function, and I don’t know how to increment i properly to give unique keys to each Text Here is my code – import React, { Component, useState, useEffect } from "react"; import {… Read More How do I increment i in useState?
Suppose I have a Player Struct inside list [ %Player{name: "John", role: "nil"}, %Player{name: "Sansa", role: "nil"}, %Player{name: "Barry", role: "nil"}, %Player{name: "Edward", role: "nil"} ] and I have a list of roles: Enum.shuffle([:werewolf, :farmer, :farmer, :farmer]) What function to use || How do I map it one by one into my expected result: [… Read More How to map list using value from another list 1 by 1 in Elixir?
I’m trying to make a live NBA scores website using HTML, CSS, and JS. I’m having trouble adding a inner tr under the game scores. Here’s what my table currently looks like: Here’s my current code JS and HTML: (My current JS is building up the table and using innerHTML to modify the table under… Read More Unable to insert inner tr in a row
So I’m writing a POS system for a project at school and I’m having trouble declaring the call method for each file to access the said methods main.cpp #include <iostream> #include <windows.h> int main() { AppUI UI; SecuritySys SecSysFunc; EditBook BookFunc; UI.MainMenu(); } AppUI.cpp #include <iostream> #include <windows.h> #include <iomanip> #include <string> #include <cstring> #include… Read More How to declare and access method functions from different class files
I have a button navigation and when you click on a button, the active class is added. My goal is for the active class to be added to the button clicked, but remove that class of active on all other buttons if present. The ‘About’ button will have a class of active on page load.… Read More How to add a class on click, and remove the same class from all other elements?
When trying to change one value in a matrix, python will change all items of that column with the desired value, despite the fact I am only trying to change one. But this only happens when all rows are identical. Example: def print_matrix(matrix: list[list], dlm: str) -> None: for row in matrix: for col in… Read More Why does python replace every object of a column, when only referring to one, if all lines are identical?
Ok, so I want to return the elements that are present in both provided arrays having the same index location. exe1 = [A,B,C,D,N] exe2 = [B,D,C,A,T] it should return only C I’ve tried looping them by nested loops but doesn’t work, here is what I’ve tried: let testing = [] for (let i = 0;… Read More Identifying the identical elements in two arrays with same location(index)
im trying to let the user input a number for each person. the console then outputs the maximum value in the array. everything works fine but the max always outputs as -858993460. i tried multiple combinations but i cant seem to figure it out im new to arrays so any help would be appreciated as… Read More the largest element in the array outputs as -858993460 [C++]
I have the following dataframe and chart created using ggplot2 library(tidyverse) df <- structure(list(Key = structure(c(1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 4L, 4L, 4L, 4L, 5L, 5L, 5L, 5L, 6L, 6L, 6L, 6L, 7L, 7L, 7L, 7L, 8L, 8L, 8L, 8L, 9L, 9L, 9L, 9L, 10L, 10L, 10L, 10L,… Read More adding geom_point to a geom_rect chart in ggplot2
I am trying to create a sqlite table containing a foreign key, using the default sqlite3 library from swift/xCode via import sqlite3. The table is getting created without the key, but if I add the foreign key to the statement, I get a syntax error. Error: [logging] near "date": syntax error """ CREATE TABLE IF… Read More How to create a foreign key in swift sqlite3?