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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answers332
viewsHow to prevent a website from being listed on Google
I’m creating a website and an app that will access the same database. While I will still be developing the site and all its modules, I will already put the same "in the air". Even for more efficient…
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answers679
viewsMenu to select color
I’m making a tool, and I need a menu for color selection. Could someone tell me how to do? Something like that:
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answer977
viewsInsert data into an External Json
How to insert data into an external Json file: var json = { caminho: "img/minhaIMG.png", descricao: "minha descricão" } How can I enter new data into this json file? In my case, I would use it as a…
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answers828
viewsHow to control a web application session in different browser tabs?
I am developing a web application and using server session to control access to the application, this session should be terminated when the user logs off the application, when to close all tabs of…
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answers13394
viewsPHP application does not log into the facebook app by localhost
I’m developing a PHP application that returns the list of facebook user friends. Although I specified the domain and site URL in the Facebbok app I created, I get the following message: The given…
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answer502
viewsOrchestration web service
On many websites and articles, the term orchestration of services is displayed. But what it means to orchestrate services and processes in the terminology of web services?
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answer843
viewsDataannotations for checking between Start Time and End Time
I have two fields of type [Datatype(Datatype.Time)], being Start Date and End Date, and I cannot let the user enter the End Date less than the Start Date for the purpose of calculating hours worked.…
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answer138
viewsIs it appropriate to use layers in an application using microservices?
Structuring a layered web application is used only in monolithic applications or also in microservices? Presentation layer Application layer Business Logic layer Data access layer…
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answers387
viewsHow to do concurrency control in Hibernate for INSERT in the database
I’m having a competition control problem in entering data in my web application. Context: I have 3 tables (ex: X, Y and Z) that record hospitalizations of patients (already registered). A patient…
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answers572
viewsPrimarykey, Foreignkey and Unique With JPA
I have the following situation: Student Entity (id and other) Entity Evaluation (id and others) Entity Notaavaliacaoaluno (avaliacaoId, alunoId) I want to transform the attributes valuedId, alunoId…
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answer1469
viewsHow to make a site multilingual and identify the country of origin?
I am developing a site in Javaee and would like it to be multilingual (at least English, Portuguese and Spanish). But I would like to know how large websites, such as Facebook, for example, do to…
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answers6417
viewsWhat are the advantages and disadvantages of generating HTML on the client or server?
Historically, HTML has almost always been generated on the server, with Javascript being used for a few things, such as animations, validations, masks, etc. However, in recent times there was a…
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answers4850
viewsHow to print a text (coupon) via javascript?
I have a commercial web application written in ASP.NET MVC4 with c#, where I need to print a direct sale closing coupon to a non-tax printer (Diebold). Is there any way to send, whether by JS, a…
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answer238
viewsWhat does this definition of resource really mean?
I’m studying about web API’s and REST and the book I’m reading says the following: The Web is built around three main concepts: resources, URI’s, and representations. A resource is anything that has…
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answer526
viewsConvert HTML menu to Wordpress
For the first time I am working on converting an HTML template to Wordpress. I’m having some difficulties and the one that’s bothering me the most is this: I have an HTML menu and would like to…
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answer460
viewsHow do I communicate Javascript data in JSF?
I am developing an application that performs digital signature. In it, I upload a file PDF that has the address stored in a variable JavaScript. In the background, there is an application in JSF,…
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answer110
viewsWhat are Native Hybrid and Web Applications?
Hello folks I’m a little lost in the study of mobile computing I’m studying these 3 types of architecture for mobile development someone knows the definition of these development architectures ?…
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answer612
viewsIn Spring MVC, how to send information to the view (.jsp) without using Modelandview?
I am developing a web application in Spring MVC. I have a method that returns a list (java.util.List) and I need to pass it to the view (.jsp), but without updating the page. I would like to know…
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answers184
viewsError while trying to run the project in Meteor
Being brief, I’m not getting to run my app on Meteor. I create the project normally Content create nameProjet but when it’s time to roll (command "media") he does not present http://localhost:3000…
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answer923
viewsTips to improve the performance of an ASP.NET MVC site
I attended Devday 2015 and had the opportunity to participate in the Roberta Arcoverde about the architecture of Stackoverflow. I found her approach on the issue of performance interesting,…
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answers1706
viewsCapture user name logged into machine via Web Application
There are two applications, one in Java and one in ASP and both manage to integrate with Active Directory without me typing user and network password. The application made using ASP, automatically…
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answer301
viewsSync Android x Web
I am developing an application that will work offline on android and sync with a version web. I have a API that will mediate this synchronization. Currently the version android has a timestamp to…
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answer1209
viewsIs there any way to access a cookie from a different domain?
Is there any way I can access a cookie from a different domain? For example: there is a cookie on facebook.com.br and I want to access cookie data within my site www.fulano.com.br .
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answers1160
viewsHow to copy an html block when clicking a link/button?
Today a friend and I thought about developing a system for registering resumes, only I need to click on a link add 1 more block inputs each time clicked. I tried searching, and did not find nice…
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answers113
viewsHow to make a link presentable
How do I "index" a link on a website to display it in a more presentable way? Example of sites/app that do this is Whatsapp, facebook, gmail. For example, in Whatsapp just paste a link and wait a…
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answer762
viewsWhat is a Shim?
When asking about "what is a Polyfill?", bumped between comments and searches with the term Shim. What would be a Shim? What is the relation of the term Shim with the term polyfill? Shim is directly…
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answers290
viewsHow to debug Nodejs code?
In my initial studies in web development with NODEJS I have the following question: a tool to debug NODEJS codes in a Web system ?
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answer2022
viewsWhat is a view-port?
In this my question the user Guilherme Nascimento mentioned a term called view-port in its response to a div and its CSS, this term is unknown to me and has given me some doubts. Doubts What is…
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answers37
viewsPut my email to receive the contact messages
Where I add my email to receive the contact form messages? <form name='contact-form'> <div class='fm_namer'> <input class='contact-form-name' id='ContactForm1_contact-form-name'…
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answer147
viewsIs it correct to leave the responsibility of freight calculation at the front end?
We all know the agility that certain code written on the front end has and makes our applications faster. It would be correct to calculate a freight at the front end of the application and send this…
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answer310
viewsProblems accessing a website via Rstudio
Problems when connecting there is a particular site via Rstudio url <- "https://www.jusbrasil.com.br/diarios/busca?q=%22licen%C3%A7a+sem+vencimentos%22&idtopico=T10001849&o=data" links…
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answer101
viewsHow can I update a parent status via child in React?
I need to update a parent’s status via a link click on the child’s Komponent, but I’m not getting it. I’m trying this way: Component Pai export default function Home() { const [board, setBoard] =…
javascript react web-application app componentasked 4 years, 4 months ago João Paulo Santos Pessoa 51 -
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answers132
viewsHybrid Android Apps. Is the performance loss that big?
Someone there has developed hybrid apps for Android and can you tell me if the loss of performance is great? I have read in various articles on this web that there are problems such as delay in the…
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answers1011
viewsProblems with saving data in form-model Django
Gentlemen, good afternoon to you! I’m facing a small problem, I made some changes in an application I’m developing for studies. I come across the following, fill the form all right and when I go to…
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answer587
viewsHow to communicate a local application with an open web page in the browser?
I have a commercial web application that runs basic restaurant operations. In summary, a waiter accesses the 'orders' page and requests a new 'product'. These products are classified by departments,…
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answer1474
viewsScheduled tasks on the web
In Google Inbox allows the creation of reminders and allows you to postpone them to a certain date and time. The reminder is then taken from the main screen and when this exact date and time comes…
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answers80
viewsView video with Javacv using applet
I’m using an applet that displays a security camera image through Javacv. Running alone, the applet displays the video perfectly. When I run the applet in my web application, it even renders the…
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answers126
viewsHow to calculate an optimal value for Scrapyd’s CONCURENT_REQUESTS variable?
One of the default settings in Scrapyd is the number of concurrent processes (is 16). CONCURRENT_REQUESTS = 16 What would be the best methodology to calculate an optimal value for this variable? The…
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answer907
viewsWhat is the best way to fragment a Django project into apps?
I’m doing a study project to apply what I’ve learned so far with Django. My question is: what is the best way to segment the project in apps? If you want to give an example so that something…
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answer998
viewsDoes PHP support Bluetooth?
If not, in general (web) is there support for bluetooth? Is there any way to communicate between PORT WITH (Bluetooth) for the web?
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answers580
viewsHow to keep a web project in sync with a remote server?
I would like to know the best practices of keeping a web project up-to-date on a remote server. I am starting a web project where I need to keep it on a remote server, and from my local server I…
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answer809
viewsCommunication between pages via Javascript
I am developing a web app, where each page has an option to filter, for example, one for brands, then the models of these brands, after, the cars and then the years of the car chosen. I would like…
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answers695
viewsWeb scraping with pure Javascript
I want to make a web scraping that reads an XML page and takes a certain value that is in "name", but, I do not know exactly if it is possible - I only found in how to do with Nodejs -, is it…
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answers958
viewsTake a line ID that has just been created in PHP
Hey, guys, let’s go So I’m having a problem which is this, I have a table players, a table workouts and an auxiliary table playfulness (where I’ll see if any players are training at the moment) The…
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answer845
viewsSIGEP WSDL problem
I am at a time with a project of the post office, I had to make a connection with the webservice SIGEP WEB, I found something already in development in, I was using the same and everything OK, from…
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answers1744
viewsDifference between back-end and front-end?
Guys, there’s a home page that has 3 filters: (select) Property Type: House or Apartment (select) Business Type: Purchase or Rent (input) City or district The person enters with the 3 search…
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answers31945
viewsHow to put one div overlapping another using only relative position?
You may find it unnecessary, but it’s because of an effect I want to use, and my question is this, if there’s any way to put one div overlapping another using only relative position on both
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answers15546
viewsEvent key enter into input
Good morning, I have one input out of a form and I would like when someone typed in it and hit enter some function run, but I don’t know how to do.. <input type="text" value="texto" />…
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answers2249
viewsShould we use SVG or PNG icons for websites?
Is it better to use icons in SVG or PNG formatting for websites? Why?
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answer5435
viewsHow to fix the error: HTTP Status 500 - Servlet Execution threw an Exception?
Language: Java Server: Apache Tomcat. Ambient: Eclipse. I am following the Caelum Workbook of the course FJ21 - Web Development with Java. I created a form but at the time of recording it presents…