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.
Learn more…930 questions
Sort by count of
-
-1
votes1
answer2214
viewsNotification, "Registration Done" message Displayed by clicking on a form button?
How to get the browser, or actually the site to send messages like those issued for you to subscribe to a newsletter from some site. I want this message to appear when I click the sign-up button...…
-
-1
votes2
answers74
viewsgetDate() from Javascript returning NULL
(function(){ var data = new Date(); var dia = document.querySelector('.table tbody tr > td'); dia.textContent = data.getDate(); })(); I have this function in Javascript. It always returns NULL.…
-
-1
votes1
answer162
viewsdoubts with the single page application of angular
am beginner with single page, and would like to know if I need a server to run my web page that I am creating with single page? if yes which the best server to use?
-
-1
votes1
answer66
viewsI can not send data from Angularjs to PHP
I would like to send an email using Angular JS and PHP, but I don’t know why my data is not passing. index php.: <section id="contact" ng-controller="DbController"> <div class="contato">…
-
-1
votes1
answer1389
viewswamp error via network
Good night. I installed a web system on a machine where I have installed Wamp 3.1.0, but when I try to access it through another machine connected to the same network I come across the following…
-
-1
votes1
answer861
viewsHow to capture textarea specific line in JS?
I’d like to know how to capture one specific line where there is certain occurrence based on the result of a textarea. The idea is to enable a personalized marking in the same sense as a markdown,…
javascript jquery web-application textarea markdownasked 6 years, 10 months ago Leonardo Pessatti 56 -
-1
votes1
answer35
viewsWeb Application (running only on mobile)
Is there any way I can basically make an installer, as if it were an app or mobile game???? Because I wanted to generate an access icon for the customer without having to open site through browser.…
-
-1
votes3
answers420
viewsIs it possible to create an application entirely with Javascript?
I am new in the area of development (by the way, I’m not in the area yet). I would like to know if it is possible to integrate back and front-end entirely by Javascript pure. Because I believe that…
-
-1
votes1
answer380
viewsDatabase Modeling (Entity Relationship Model)
In the image below is the modeling of the following problem. I have users where these will belong to modules(Physical module, Portuguese module, chemical module) are 3 modules in total.One and only…
-
-1
votes2
answers106
viewsDoes web API without bank access make sense?
In which cases it makes sense to create a Web API without database access?
-
-1
votes1
answer49
viewsSending mobile information to the web
Good morning my dear! I want to collect some data and send some information from Mobile (Android) to a website I am developing with (Python+Django). However I do not know the name of this cell phone…
-
-1
votes1
answer150
viewsSend a POST and how do I recover the data in ANGULAR?
onSubmit() { console.log(this.formulario.value) this.http.post(this.configUrl, (this.formulario.value)).pipe( map(res => res)) .subscribe(dados => console.log(dados)) } This is my post code,…
-
-1
votes2
answers109
viewsSend messages on web site(messenger online)
Hello, I want to create an internet messaging site(SMS messenger), I have some questions: Which languages should I use (notably I will use HTML, CSS, JS) I’ll need to use a database? How to…
-
-1
votes1
answer365
viewsWhy use a packer like Webpack?
I was talking to a friend about the flash and how all the code is compiled in a single file and "zuamos" about the "1tera" that the user has to download, of course, exaggerating... But then a…
-
-1
votes1
answer31
viewsI would like to display a txt file using JS or PHP respecting line break
I tried included and require, but they do not respect the line break. I want to print the file information inside a <p>, study-only.
-
-1
votes1
answer13
viewsMvn -Prod removes line from <script> when running
Every time I run the command below to generate . War, if I added some new js (library) in index, it removes. mvn -Pprod clean package When I run the system through the IDE, it works normally. Any…
-
-1
votes1
answer81
viewsOnload file . txt
You guys are late. I need to upload the contents of a file. txt to a web page, since I need to have control over the scroll, I need to keep it always at the end of the page, and a constant update.…
-
-1
votes1
answer68
viewsStrange error on Xlworkbook line
Personal I appeared this message in my code that I am posting in the image, someone can help me in search of a solution; Follows the code: protected void importar_Click(object sender, EventArgs e) {…
-
-1
votes1
answer242
viewsWhat the structure of large Java projects would look like
In small web projects, we usually separate packages into DAO, Models and Controllers, but into large systems of the type ERP, with hundreds of tables, controllers and business logics, what this…
-
-1
votes1
answer26
viewsProblem when trying to enter age alert in online store
<body> <script> function menor_idade(){ location.href="https://criancas.uol.com.br/" } function maior_idade(){ document.cookie="aceita_conteudo_pagina:sim"; window.location =…
-
-1
votes1
answer59
viewsWeb api c# - Get current path in controller
How do I get the current path of an endpoint in the controller?
-
-1
votes1
answer288
viewsClick on modal with the Puppeteer Node Javascript library
Hello, I would like help to be able to select an item within a mondal, using the TAB key inside a FOR then a ENTER can solve , the problem and when the customer has another contract, even selected…
-
-1
votes1
answer395
viewsRoutes with flask
I am trying to separate the functions of its routes, creating only a file for the routes and a file for each function, but when I try to call this file from the function in routes it does not find…
-
-1
votes1
answer155
viewsHow to upload css file to Django?
I started studying Django and I have a problem, Django can not load CSS (NOTE: It was already CTRL+F5 and still does not load CSS) Information that may be useful: STATIC_URL = '/Static/' folder…
-
-1
votes1
answer113
viewsI can’t change files in htdocs without creating a copy
Good afternoon! I am working on a web project and having problems with the htdocs folder. When I make a change to a file and check, the change does not appear on the page. In order for it to appear…
-
-1
votes1
answer33
viewsWhat alternative do I use to solve the problem of the get() function not working
from tkinter import * def executar(): l1['text'] = t1.get() l2['text'] = t2.get() l3['text'] = t3.get() root = Tk() root.title('App') t1 = Entry(root) t2 = Entry(root) t3 = Entry(root) l1 =…
-
-1
votes1
answer136
viewsAngular Material - Date Picker changes the date when taking input focus
I am facing problems at Angular. I am using angular material for some /components and I am using datepicker. My date locale is already 'pt', it even appears the name of the months in Portuguese and…
angularjs typescript web-application datepicker angular-materialasked 3 years, 10 months ago Maria Beatriz Almeida 1 -
-1
votes1
answer93
viewsHow to insert data from a form made in Angular2 in a database?
I’m starting to learn Angular 2, and I have to do a CRUD of a system over series, and I need to store data in a database, currently I know how to use Mysql using Xampp. I need to make the request…
-
-1
votes0
answers9
viewsI cannot save password encrypted with bcrypt in the database
I encrypt the password with bcrypt and when I will enter in the database it just won’t go but if I put anything else works what I can do ? $senha = \DarkDevs\Bcrypt::hash($senha); $registro =…
-
-1
votes0
answers8
viewsApp structure with various USER_HOLES
I need to develop an angular design that will have various types of user. My question is whether to create two/more applications in the same angular Workspace, using the library system for the…
-
-1
votes1
answer42
viewsCreate a standalone process in a web application
I have a web system with an mvc architecture, it simply loads information from a bank and displays on the screen. I need to create two features that run regardless of a usurer is accessing the page.…
-
-1
votes1
answer200
viewsCondition IF, ELSE
I have a Java Spring MVC application, with Hibernate and JPA and HTML interface. I have Two forms that depend on the Notebooks class registered and its attributes. The forms have the following…
-
-1
votes1
answer96
viewsImplementation of a catalog with Turn js, using Ajax
I am implementing a flipbook in which you need to load the sheets dynamically, so I am using Ajax. When I implement the flipbook in a static way it works perfectly. And I can also call all images by…
-
-1
votes1
answer21
viewsProblems opening a Select One Menu within a p:dialog
I own a select one menu within a p:dialog, I can see that it loads the data, but it doesn’t open, doesn’t drop down, outside the p:dialog it works normally. I searched on but found no results. My…
-
-1
votes1
answer47
viewsWhy is this button not updating in the bank?
Follow here my code below, what happens is the following, when the user logs it to the chat page, when it goes to that page is made an update in the database to status = 1 that status equal to 1 is…
-
-1
votes1
answer89
viewsJs Chart does not work,saying variable has not been declared
Good personal night, when executing the code below it says: "Uncaught Referenceerror: Chart is not defined" I have tried several modes, however that seemed the most logical. I would like help with…
-
-1
votes1
answer196
viewsProblem displaying dynamic image with Thymeleaf
I have an application, where the user can store the profile photo. Save the image in C:/imgPerfil/ concatenating the user id with the original image name. Example: "2test.jpeg". I need to show this…
-
-1
votes1
answer135
viewsAndroid emulator accesses web service by browser but not by APP
Good morning, what happens is the following my emulator accesses my web service by browser at http://192.168. 2.192/index.php, it shows the result of the page, <?php $minha_info = "TESTE JSON";…
-
-1
votes2
answers67
viewsHow do I get records from my database in ascending order(of id), but I want it to take one by one
<?php $conn = mysqli_connect('localhost', 'root', ''); if($conn){ $Selectdb = mysqli_select_db($conn, 'quiz'); } $sql = "SELECT * FROM perguntas ORDER BY…
-
-1
votes1
answer107
viewsINNER JOIN data mixed in php + json
Good evening, so I’m trying to create a API, and I came across the following problem, I’m not able to group the data from my inner join, follows the code : <?php $json = array(); $db =…
-
-1
votes1
answer603
viewsNameerror: name X' is not defined - Django Rest framework
Following the tutorial for creating API with DRF, I encountered difficulties while mapping the urls. By running 'python manage.py runserver', I get the following error path('', include(loja.urls)),…
-
-1
votes1
answer294
viewsIdentify the end of the page in the scroll?
First of all, I’m sorry, I see you have other similar questions, but I’m having an error that I’ve been trying to solve for 24 hours. The above image shows a method that 'tries to detect the end of…
-
-1
votes3
answers1280
viewsDevelop a function that concatenates elements of the same position in different arrays according to a given condition
This is my first question here on the site, so sorry if my way of questioning does not follow the expected pattern rs. I’m taking a programming course Javascript for beginners to apply for a…
-
-1
votes1
answer30
viewsPost goes as Null in the Node api
I am learning how to create a simple API with Node. The get works perfectly, but the post ends up going like null. The code goes like this const express = require('express'); const server =…
-
-1
votes2
answers559
viewsAngular 7 Cannot find a differ supporting Object '[Object Object]' of type 'Object'. Ngfor only Supports Binding to Iterables such as Arrays
I am studying angular and decided to make a very simple movie search. I would like to put the elements of the film on the screen, but the return of my get has been an Object. I have broken my head…
-
-1
votes1
answer22
viewsError connecting to database via Seriate Node JS
When I connect to my database locally it works normally. But when I deploy to Heroku returns me the following error: Request Error: No connection is specified for that request My configuration…
-
-1
votes1
answer118
viewsWeb Scraping with Pandas - How to treat values that are null in the collection and how to concatenate two columns in the final result?
I’m making a Web Scrap using Python and Pandas, on Windows. I am collecting the data from the page, generating a Dataframe in Pandas and then exporting to an Excel spreadsheet. I’m not using any…
-
-1
votes2
answers49
viewsHow to remove ZIP code and country from a string
I’m using Javascript to manipulate some strings that comes from an API and I need to remove the zip code and country from one of these strings. Basically, I get the phrase like this: "R. Anderson…
-
-1
votes1
answer36
viewsUnknown code in HTML page
I’m doing a basic project to put the learning into practice. I have a very strange problem, which is this code appearing next to my content, on the browser page. It appears whenever I select the…
-
-1
votes0
answers12
viewsHow to use Redirect in my React application
I’m making an application in React, I’m using the Redux and the saga Redux. I am protecting the routes, but when I do the redirect does not take me to the main page of my appeal. That’s the code of…