Most voted "web-application" questions
In computing, web applications are generally computer systems designed for use from a browser, via the Internet, or applications developed using web technologies such as HTML, Javascript, and CSS. Can be run from an HTTP Web Host server or locally, on the user’s device.
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answer34
viewsCapture query string in Wordpress
I’m trying to capture the query string paged on the main page to call a component and load the data. However, its return is always 0. When I use this component on other pages, it works normally. URL…
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answer895
viewsCORS is not enabling
I developed a API REST in Node.js and I need to use it in my front-end. I’ve installed the library Cors and enabled on my server but continues to give the error of access when making the request…
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answers1309
viewsHow to make Redirect on the page with Django
How to redirect passing an object as parameter in Django already tried redirect() and HttpResponseRedirect but I can’t send an object to page in Sponse, every time I hit F5 it wants to resend the…
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answer471
viewsError - java.util.Date cannot be cast to java.sql.Date when saving data
When trying to write the data to the database, the program points me to this Exception:java.lang.Classcastexception: java.util.Date cannot be cast to java.sql.Date. The first code slime is Servlet…
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answer43
viewsMake another sentence appear in the same place as the previous one, after an animation
The thing is, I need a sentence to appear as if it were typed on the screen, and after the first sentence appears completely, a new one should appear in the same way as the previous one. The part…
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answer68
viewsDjango filtering of timestamp transactions
I am having a logical problem trying to perform a data filtering on Django. According to the code below, I am trying to filter an object inside my database: class…
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answer33
viewsClock that goes down too fast
I’m trying to make a counter work when I click a button, it turns out that when a button is clicked more than once the counter starts to decrement too fast. Source code: var pomodoro =…
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answers49
viewsHow to make the custom select of the screen "Suppliers" search information (Company name) in the table "Company"
I am developing an Asp.Net application using MVC 5. I have created one select on the Vendors screen and I would like to know how I can get the information from my bank and show them in this custom.…
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answer1773
viewsSpacing between items in the navbar - Bootstrap
I wish to place a small spacing between navbar items (home, about, contact, store and disabled). <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta…
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answer32
viewsError when adding a text with Django 3, how to fix it?
from django.db import models class Topic(models.Model): text = models.CharField(max_length=200) date_added = models.DateTimeField(auto_now_add=True) def __str__(self): return self.text class…
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answer72
viewsI can’t enable javascript function
I’m trying to implement a very simple function of leasing a particular product. I need the id is read within a field and activated with the button Schedule. But the function is not activated when I…
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answer98
viewsCustomize colors in ionic6
Friends and friends recently started my studies in Ionic and I started in the most current version (6.4.2) I’m having such a hard time that I’m beginning to question my intelligence. (laughs) I’m…
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answer62
viewsParameters for business rules registered in the database
Good night, Recently I came across a situation that left me very in doubt, is a module of a system that calculates the value to be paid for a service and for this all rules are expressed in a table…
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answer446
viewsImages disappear in Heroku after a while
I made a website for a newspaper in Django. I have deployed to Heroku and there I have a news register, where I have the title, summary, content and date fields. According to the model: class…
python django web-application heroku django-templatesasked 4 years, 4 months ago Gustavo Augusto Pires 13 -
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answers106
viewsHow to click on two different '<div>' at the same time on mobile devices?
I’m creating a website to play musical notes and for that I need to click multiple buttons (Divs) at the same time, but when I do this nothing happens, only when I click one button. On the computer…
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answer203
viewsError - "Required field" in image upload using Django
Guys, I’m developing an application with Django and after organizing the form I went to test the registration and the image upload field always has the same message: "Required field" no matter what…
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answer201
viewsHow do I use http.get() in Flutter WEB?
I’m trying to run a Flutter mobile project on WEB. There is a part that we make a requisition http an endpoint to take a JSON data that is used the following excerpt: final response = await…
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answer132
viewsHow to recover firebase keys? Javascript
Good evening, I have the following data structure: I need to store all these Ids that are children of visits in an array to later create a loop to search for the data that each of these Ids has, but…
javascript web-application firebase firebase-database idasked 4 years, 3 months ago LEANDRO DA SILVA 121 -
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answers131
viewsHow to access belongsTo and hasOne in the view? - Relationship 1 - 1 bidirectional
I am with project Laravel 6.0 and have the entity User and address, where user has 1 address, as well as an address belongs to 1 user (bidirectional). The problem is that list all addresses and in…
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answers37
viewsDoubt in the execution
I am attending the basic course of Reactjs of João Ribeiro, and in class 17 he writes the following code: class App extends React.Component { metodo = (texto) => { console.log(texto) } render() {…
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answer79
viewsHow to get the page after authentication with requests?
I am trying to make a web scraping in python. My code is as follows: import requests from bs4 import Beautifulsoup Session = requests. Session() payload = {'username':'[xxxxx]', 'password':'[xxxxx]'…
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answers52
viewsI’m trying to make a POST request, but Postman is returning an error. Help me!
Controller: package Controlador; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.MediaType; import org.springframework.web.bind.annotation.PostMapping;…
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answers20
viewsASP.NET Index (Controller) method that only runs when I want
good night. First I apologize for the ignorance, I am beginner as a developer. From what I understand of ASP.NET, it will automatically run all void methods of my index when this index is called.…
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answer45
viewsHow to detect functions in the browser
I am developing a web scrapper in python that will take the data of a stock chart every 30 min and send me an email telling me if the action has varied positively or negatively, however, I got the…
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answer31
viewsExecution of external script(js) on an online page
I want to execute a script (JS) specific to the exclusion of some elements of the page that I consider visual pollution; and hinder my navigability in specific. ( It’s the university website, so I…
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answers24
viewsApplication . net does not create service in windows (sc create)
I have the following code: public static void CriarServico(string nomeServico, string caminhoExecutavel) { try { string arguments = string.Format("create {0} binPath={1} type=own start=auto",…
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answers157
viewsDjango: Css not imported
I am developing my first site with Django and I came across a problem: While running the browser application, as changes contained in the css file do not apply to the website when I try to import…
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answers13
viewsHow to round the result of a script, in case the script is IMC calculator
IMC calculator <h1>Calculadora IMC</h1> <form name="FormInc" action=" " method="post"> Enter your weight: Enter your height: <script type="text/javascript"> var peso; var…
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answers40
viewsIn my Java web project the mysql driver does not work when using the dependency in the pom.xml file
All right, here’s the deal. I am doing a java web project and when I add mysql-Connector-java as dependency within the pom.xml folder, the project does not communicate with the database. However,…
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answers25
viewsKeep iframe extension running in the background in Chrome
Good afternoon! I apologize if that question already exists but I haven’t found anything like it. I created an extension to listen to Antena 1 by Chrome through an app. Basically I took the URL…
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answer57
viewsDynamic Form with Flask
Hello, I’m creating a website that consists of a teacher creating a quiz and sending it to students to answer, but I’m not finding a way to get the teacher to ask as many questions as he wants. At…
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answer41
viewsShow internet image in my Django app
Hi, I’m learning to use Django. I wonder if you have any way to reference static files that are not saved on my server. Example: In this way HTML works: <img {% Static 'name_da_imagem_here.jpg'…
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answer27
viewsHow to resolve duplicate mainpage on the site?
I posted my website a short time ago and SEO score analyzers report that my mainpage is duplicated. They show that there is https://www.converteb.com.br/ and https://www.converteb.com.br/index.html…
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answers25
viewsHow to relate account to Realtime Database data in firebase
I am developing for web, and I can create the user, but I have to attach more data than email and password. In case I need to store the name, surname and date of birth. How I can create this user…
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answers109
viewsFatal error: Uncaught Error: Class "Source Models Post"
I am unable to instantiate the object, my class inside the source/Models folder <?php namespace Source\Models; use CoffeeCode\DataLayer\DataLayer; class Post extends DataLayer { public function…
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answer46
viewscss class using jinja2 does not work
I’m trying to put css styles but just took the first block of code in my css style. css style. h1 { color: blue; } .login { display: inline-block; padding: 15px; border-radius: 4%; text-decoration:…
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answer33
viewsbtn:checked should expand a container but it doesn’t work!
I did a btn:checked that should expand the container . side-bar, but it does not expand! I tried to put it before the side-bar in html, it before it in css, they 2 at the same time before it and…
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answer22
viewsHow to take all consoles.logs, errors, and alerts from the console to cleinte (devtools)
I have a next.JS application and I need it to be well indexed. I’m making some changes and improvements following Lighthouse. However a mistake of "good practices" appeared that I always had doubts.…
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answers26
viewsHow to capture and compare a tag content, using Xpath, for automation using Selenium c#?
I would like to know how I can take the content of a tag, for an Xpath, and filter it, for example: I have the following code below, it basically goes to a website, and finds a table, and within…
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answers47
viewsHow to check the id of an item in a class in Javascript?
Basically I have a class, and every item in this class has a id, how do I check this id is equal to a specific value? and, if it detects such value, how to change to a different image? My code is…
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answers43
viewsload infinity nodejs
Hello, I am doing a small application in Ode and I am facing the following problem, my routes are not loading in the browser. I’m new to nodejs, so it might be something I still don’t understand,…
javascript node.js web-application express back-endasked 3 years, 5 months ago Cláudio Vitor Dantas 11 -
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answers24
viewsSecurity Failure | Java Web Authentication
Context: I am building a CRUD in Java Web to study and acquire knowledge. I am not using any Framework, only JSTL to have more elegant code in Jsps. I recently implemented system authentication…
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answers9
viewsProblem running video. net core
Talk Guys, it’s all right? I’m building an intranet portal in my work on. net core, and I need to add some videos that were posted on another company intranet portal. I have both the possibility of…
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answer43
viewsDoubt about Laravel’s basic structure!
Is there any recommendation to follow from the Laravel framework when starting a project? I ask this because when starting a project already comes by default with some predefined structures! saw…
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answer31
viewsBuild application made with Flask
While running flash run, I get the following error: Error: Detected Factory 'create_app' in module 'spcdados.app', but could not call it without Arguments. Use…
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answers8
viewsWeb application request query execution for desktop application
I want to implement a solution in the following scenario: A web application will send a desktop application an sql statement to be executed and return the result to the web application. Example: Web…
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answers23
viewsQuery mysql UPDATE is doing the INSERT function
I created a function to modify the data of a DB regarding a particular product: public function editarProjeto(int $id, int $categoriaID, string $titulo, string $ano, string $descricao, string…
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answers24
viewsTable relationship command not working
Good afternoon, I have a function with a query to search a list of photos of a certain product in the Product class: class Produto { private $mysql; public function __construct(mysqli $mysql){…
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answer110
viewsWeb Service runs but when consuming method gives error
I struggled to set up my web service on IIS. It goes up, showing the screen that WS is ok. It turns out that when I pass a parameter to it gives this error: REQUEST ERROR The server encountered an…
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answer281
viewsProblems with Glassfish Permgen Space
I have a project that runs a web control system, it has a web service Rest for mobile queries and data collection. It performs perfectly, but the project is still under development. It has already…