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I am trying to auto update my chat system whenever a user
Types a message but there are no good tutorials on YouTube i can update when a user starts typing but i want it to be live ive tried:
Infinite loops (page crashed) and
When a user Types update (i want it live)
And my page crashed.
I have access to jquery ajax and built in JavaScript ajax.
Thank you.
You can try to work with long polling or comet or web socket features for auto-updating your chat system, while you want to check the user, starts typing or no.
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Suppose there is a website on internet which shows Indian share market price. And price of share is changing every second.
This site provides no api support
How can i continuously track this price and update to user when price goes above a specified limit.
I am beginner please help me how to start and where to start
All the process should be on server not from my phone/pc
I am beginner please help me how to start.
Maybe you can setup a web scrapper that fetches the page on a periodical basis with the help of a background job, you may begin with PHP and Cron.
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Since a year and a half I am trying to figure out how some websites update their content in real time without AJAX method.
Please see this example website: https://pro.btcturk.com/en/basic/exchange/BTC_TRY
That website is changing many texts within content in different timing.
It means that when the server is updated with new values in the database then the website is listening to database changes and then reflecting/delivering inside content without ajax calls.
Can someone give an example how to achieve such functionality possibly using Javascript or PHP normal hand-code appreciated?
Thank you
You can see the process here:
More information here: Websockets
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I'd like to try to develop a simple chat room app, it might have the real-time message interaction, what's the important thing I should notice and I will do first?
I highly recommend using react-native-gifted-chat for the UI, and using firebase for the real-time connection.
You will want to think about how the user will enter the chat. Will there be a message board, will there be group/one-to-one chat, will the users be able to send images, push notifications, in-app new message alerts, read receipts, etc.
I have a simple chat that I built using RN-gifted-chat and firebase that you can look at for reference: https://github.com/liplylie/ReactNativeChatImageAudio
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I currently have a timer set up on an “admin” page with JavaScript and I want to display that same live clock on the homepage of my website. How can I do this? It’s basically two input fields that display number values. One displays minutes and one displays seconds. The values are updated using buttons which are found on the admin page. What I’m trying to do is display the current time that the clock is showing on the admin page on a separate page. Is there a simple way to do this?
You could store the value of the timer server side and just query it each second to see at what time it currently is. You could also use socket.IO to have real time access to the server timer.
It's impossible. website is connectionless.
You can't push any event to other client page
without client behavior(like button click..)
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I want to get an website element that is always changing, such as a countdown timer that resets when someone clicks on a button. Anyone know how I can implement a constantly changing element in my C# program?
You can implement periodic updates using client-site Javascript functions, either setInterval() or setTimeout(), with syntax like following:
// start digital clock
function StartTopClock() { _pID = window.setInterval('UpdateTopClock()', 100);}
which provides periodic updates every 100 ms.
Detailed description is available at: http://digiclock.codeplex.com/, working demo at: http://webinfocentral.com/
Hope this will help. Best regards,