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Momental exchange of web messages

emmalee last edited by

What technologies exist for the timely exchange of messages via the web? I only heard about comet, maybe who knows about others.
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Oba22 last edited by

If I understand correctly, you should look the other way. http://ru.wikipedia.org/wiki/WebSocket and review of this technology http://habrahabr.ru/blogs/webdev/79038/
And what you're going to write to the server is your personal business.
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web programming 2584

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Does not display HTML/CSS
Software Programming • html cs web programming presentation • • courtlanda

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You path is wrong. Since the css file is not in the root, it's in the folder, first we have to get out of it and then go into the img:url(../img/intro-bg.jpg)
Why is the tag aside with float: top; is it?
Software Programming • html cs web programming • • Marcee

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Take the habit of always applying zero for the whole page:* { margin: 0; padding: 0; } If you add these properties to the CSS, it'll look like it's necessary.
Self-learning. How do you study web-based programming?
Software Programming • html cs web programming • • Analeea

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Time goes away, life. It's a constant. But it doesn't depend on the chosen profession. You're going the right way. Write the code, treat the mistakes. As an induction manuala, choose any of your tastes, for example. https://html5book.ru/ ♪ As guides, W3CScools: https://www.w3schools.com/html/ ♪ https://www.w3schools.com/css/ ♪
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Why doesn't prompt a message?
Software Programming • javascript html functions • • Trenton

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It's best that each function is responsible for one thing, so let's separate the fly from the cottage:// Объявление функции вычисления 3-й степени числа function cube(cb) { return cb*cb*cb; // лучше cb**3 } // Запрос значения let n = +prompt('Введите значение:', 0); // Вычисление значения куба числа let cb = cube(n); // Вывод результата document.write('Куб числа '+n+ ' = ' + cb);
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Web content and background
Software Programming • html • • shizuka

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Fon adds to the current. bodyand the content itself is placed in a separate element. Where everything is storedbody { background: red; } div { height: 3000px; width: 75%; margin: auto; background: #fff; }<div>Здесь ваш контент</div>
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Push notifications for a web
Software Programming • web push notific languageatio • • elysha

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The push notifications are given thanks to a real-time database that send a notice to the browser, in the case that the web page is closed, these use service workers(service workers) which are stored in the cache, these workers are javascript files that register when the web is loaded for the first time, then they are activated when the real-time database sent a notice to the browser, one of the databases Fireba https://firebase.google.com/docs/cloud-messaging/js/client I recommend reading this article you can better understand how it works: https://www.desarrolloweb.com/articulos/notificaciones-push-web-firebase.html
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How do you use VK api?
Software Programming • javascript ajax web programming online • • simrah

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Everything can and should be done on the client if the type of application Standalone is used.I see the task as follows:Get a list of albums and identify ID on which to look for photographs (method) http://vk.com/dev/photos.getAlbums )Receipt and filter the images with ID of the downloader (method) http://vk.com/dev/photos.getAll )Receipt of the user ' s ID location (method) http://vk.com/dev/users.get )As a final act, to process all data sets and to form an outcome containing the necessary information.Attention should be drawn to the number of requests that the annex might make. It's worth a delay in responding to requests.How to set up your application can be found on pages http://vk.com/dev/main ♪ And write it all on JavaScript.
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Web GUI on java
Software Programming • java web programming server gui client • • elysha

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It's simple: REST API service operates on the server, and the client section is supplied with interfaces with the JS viscos, moving services through AJAX.For RIA on the web, you can look towards Bootstrap + Backbone.js or jQuery.
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How to add a message in a jTextArea without erasing the previous messages?
Software Programming • java soc languageket • • chanisef

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What happens is that the method setText() changes all the text by String that you pass by parameter, that is why only the last message is shown. To add the new message without embroidering others you must use the method append().It would be to change this line:txaConversacionAsesor.setText(datos.getMensaje()); By this othertxaConversacionAsesor.append(datos.getMensaje());
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Web-based rolling
Software Programming • php laravel vue.js • • Trenton

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It's up to you, and it's right or wrong to show time. I don't see anything cross-sectional between two and two different ways of navigation on the site, if there is a need. The main thing is that over time, you will not have 100,500 different principles to build a site.
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Web server and REST web service
Software Programming • web server web service • • nishika

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It's a warm comparison with soft.REST is the architecture for api.Web server is implementing the protocol.In general, REST service is located at the web server and is part of the bacon.
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Send of message
Software Programming • php • • Rossere

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Google. http://www.php.su/functions/?mail /* получатели */ $to = "Mary <mary@example.com>" . ", "; //обратите внимание на запятую $to .= "Kelly <kelly@example.com>"; /* тема/subject */ $subject = "Birthday Reminders for August"; /* сообщение */ $message = ' <html> <head> <title>Birthday Reminders for August</title> </head> <body> <p>Here are the birthdays upcoming in August!</p> <table> <tr> <th>Person</th> <th>Day</th> <th>Month</th> <th>Year</th> </tr> <tr> <td>Joe</td> <td>3rd</td> <td>August</td> <td>1970</td> </tr> <tr> <td>Sally</td> <td>17th</td> <td>August</td> <td>1973</td> </tr> </table> </body> </html>'; /* Для отправки HTML-почты вы можете установить шапку Content-type. */ $headers = "MIME-Version: 1.0\r\n"; $headers .= "Content-type: text/html; charset=iso-8859-1\r\n"; /* дополнительные шапки */ $headers .= "From: Birthday Reminder <birthday@example.com>\r\n"; $headers .= "Cc: birthdayarchive@example.com\r\n"; $headers .= "Bcc: birthdaycheck@example.com\r\n"; /* и теперь отправим из */ mail($to, $subject, $message, $headers);
exchange commands in the shell
Software Programming • python shell shell sc languageript • • emmalee

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I don't know if you can assign something to the word python, in particular. It must be tied to the python binaries and it must be kind of complicated to change. What I know is that you can create a alias pro your command, something like$ alias meu_comando = 'xvfb-run python' The use would be $ meu_comando foo.py . Read about alias http://www.computerhope.com/unix/ualias.htm EDIT:According to http://www.linfo.org/alias.html link:An alias can be created with the same name as the core name of a command (i.e., a command without any options or arguments). In such case, it is the alias that is called (i.e., activated) first when the name is used, rather than the command with the same name.So you can do what you want. I just don't know if that's a good idea.
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Location of the element borders <div></div>
Software Programming • html html5 web programming web design • • simrah

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For position: absolute You can use negative margins.div{ border: 1px solid black; background: white; border-radius: 6px; } #block{ width: 400px; height: 100px; margin: 40px; } #onborder{ height: 20px; width: 40px; margin-top: -10px; margin-left: 20px; }<div id='block'> <div id='onborder'> Оно? </div> </div>
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php
Software Programming • php web programming search plugin • • authera

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Voice is the air fluctuations of a certain frequency. Put your voice down, put it on the spectrum. Maintain certain intervals searching. Programming level - high References http://habrahabr.ru/post/150251/

Momental exchange of web messages

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