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I need to create a page which can be shared across multiple users. Means while doing some stuff on my page, that should be broadcast to all the users who are joining me that time. At the same time they can also do some stuff. Something like web conferencing. I need to either use javascript or C#. Is there any API or javascript plugins or any other libraries that I can use? If there then please tell me. I don't need to share desktop just need to share only one part of a web page or only one section only like you can assume I have a particular division, there I have a canvas. On that canvas, I will type or draw something that should be broadcast to everyone.
SignalR is an open source technology built by two Microsoft employees and leverages C# and JavaScript (there is a jQuery plugin for the script side).
A good example to get you rolling would be ASP.NET MVC 3 Real Time Collaborative Apps with SignalR.
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Good morning, I´m studiyng and have this problem to solve. I have to create the logic in Javascript with nodejs, to access the device camera (this is a webApp, not Android, thats why is coded in JS), then take a picture and then send it to my backend and save it in Firebase Cloud Storage. I´m not asking for a complex code, but if u know any source, or any repository to start working will be appreciated.
Thanks in advance :D
Happy coding!
When using Node.js as part of a web application it is used for the server-side component of the application and doesn't have access to any cameras on devices accessing it.
You need to use client-side code to do that.
iOS and Android devices tend to make the camera available as an option when you use a regular <input type="file"> so you can use a normal HTML form and your usual multipart-capable body parsing library (not body-parser although its documentation list some options) on your server.
If you want access to a webcan cam then you'd need to look into WebRTC.
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Is JAVA compatible with html and js? Can we work together other than jsp???
To link the WEKA function.We implemented the java code using jar, and we need the html and js links for visualization. Is there any other method of linkage besides jsp?
There are various ways of working with Web tech and Java. JSP is an old-school means of generating a Web page using Java code and supplying it to a browser. This requires an application server capable of handling HTTP and JSP. Another approach is to create an independent Web page and to communicate with a server that is running Java. The simplest approach is, again, to use an application server that supports HTTP.
Reading between the lines of your question, I think the various solutions will require more effort than you were hoping.
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I had developed a web application in ASP.NET MVC using C# which is used for billing purpose. But now the client had a new requirement that he need to connect swiping device so that the customers can pay using their cards.
Now the issue is that how i communicate with the device from javascript? i had tried web socket but is not succeed.Is there any ways to make this possible ?
You can use the self host Web API to communicate with the swiping device.
You can simply create a self hosted Web API to communicate with the swiping device
Make it run on the client machine
Call the API from your java script
It will work perfectly
Look at the documentation of the swiping device, it should explain how you should interface with it.
Of course there's no web browser API to interface with every imaginable peripheral device, so you're simply going to have to put your software development skills to work and create a compatibility layer.
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I have been searching across the Web to find a solution to this:
Basically what I want to setup is a way to have an HTML page on a live production site to kept updated. This is because I have setup a SilverStripe Application as part of a graphics system (green chroma key) that runs through normal HTML.
AJAX load doesn't seem to be an option here since the load would be every 1 second or half a second to make sure the page is live.
I looked into web socket quite vaguely but the whole concept of integrating it with my project confused me entirely.
Anyone got any ideas of what could be done?
To do this you'll need a combination of:
AJAX, you'll need to never do a full page load after the initial Web 1.0 request.
Session history management, you'll need this in order to not break the browser navigation (e.g. back/forward buttons).
Web Sockets, you'll need this so when new content arrives on the server it is received by the client without first having to poll the server.
Web sockets will be the greatest challenge. I listed them in the order in which you should approach the project, in three phases.
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I want to create an application for Windows 8 using HTML/CSS and JavaScript. It is a game and after playing, you have the opportunity to send your score. You also can view all the scores sent by other players.
Where should I store all the scores so they can be accessed from any device? How could I implement this using WinJS?
If you're using HTML/JavaScript directly, then I recommend you use Azure Mobile Services or Buddy.com. Azure Mobile Services is gaining a lot of traction and fits in very nicely with Windows apps for sure. It's a little bit lower level than Buddy.com, so it will give you more power. Buddy.com sort of packages and simplifies a lot of things for you and is a good fit for social games like it sounds like you're talking about.
You can checkout my codeshow project at http://codeshow.codeplex.com if you want to get some general "how to" on HTML/JS apps and you can feel free to contact me if I can help you get started.
Have fun!