"Autorefresh" Feature In The Website.

Twitter and other websites uses AJAX. Refreshing the complete page takes more time which is the motivation behind AJAX. Using AJAX, you can just refresh a part of webpage which actually needs an update instead of refreshing the complete page.

The mechanism you're talking is pretty old and slow, replaced by the above one. There are many ways of doing it, simplest is using HTML as shown below.

<meta http-equiv=”refresh” content=”5; URL=https://CURRENT_PAGE_URL”>

That "5" basically indicates the time period between refresh, in seconds.

A lot of websites do that to increase the pageviews. TimesOfIndia uses slideshows for content so that each new slide adds to an extra pageview.

#-Link-Snipped-# Thanks for information,mate. One more question : Is there any condition for that ? What I mean, is there any criteria required to have such feature, or any website written with any language can add that feature (I mean automatic refresh using AJAX)

#-Link-Snipped-# Why don't CE have that feature ? Is there any technica lreason behind that ?

There's no use in refreshing the page. There are better, modern techniques powered by AJAX. We actually cut-down on the page-refreshes (affected our revenues directly 😕 ). In earlier version of CE, posting a reply would lead to a page refresh. Post a comment on provide would result in a new page refresh.

Kaustubh KatdareWe actually cut-down on the page-refreshes (affected our revenues directly 😕 )

How does page-refreshes affects the revenue ? 😨
Elaborate please.

The simple math is more the pageviews, more is the revenue.

AJAX was developed to reduce the server load.
As you mentioned that you have observed the other website auto refreshes itself after every 10 minutes. I am just assuming that they wants to refresh a particular section of the website (NOT ALL THE CONTENTS), but they choose the rather easier implementation of auto refresh. However their implementation would lead to greater server load and network consumption to user as each refresh request will use network and will request / response from server.

However in AJAX, this is a technology where screen is divided in frames and sections. Only relevant section of the website is refreshed not all. That will reduce the load.

In today's world most of the website are using AJAX for development.

Also the auto -refresh, I believe many wbesites (especially new websites) uses that.

-CB

I have encountered auto refresh in a lot of company's intranet websites where development or log views take place. Never noticed it in any other website over internet. The sole purpose of auto refresh should be when we are monitoring a progressive activity over a web page, the best example being logs of an operation.

I guess node.js can answer your questions, which i believe is preferable to ajax when it comes to real time interaction with servers


Reason : Say I have a application that loads latest news in a particular section of my website, then if i choose ajax, then what i will do simply make a ajax call after a regular interval of 10 sec (say) and load latest news, but this in turn increases server load

So here comes the use of node.js, which simply sends information to client side script that something new has been arrived

In short node.js is something that can communicate with server directly instead of any server side language like php as intermediator

Thanks

Manish GoyalI guess node.js can answer your questions, which i believe is preferable to ajax when it comes to real time interaction with servers


Reason : Say I have a application that loads latest news in a particular section of my website, then if i choose ajax, then what i will do simply make a ajax call after a regular interval of 10 sec (say) and load latest news, but this in turn increases server load

So here comes the use of node.js, which simply sends information to client side script that something new has been arrived

In short node.js is something that can communicate with server directly instead of any server side language like php as intermediator

Thanks

Hi @#-Link-Snipped-# , i'm new to node.js can you refer any source or books for learning node.js please.

Truly speaking I never learn anything from books

Just Google about node.js tutorials, there you will find a number of tutorials

Also while reading tutorials

Try to implement steps practically, that will give you a more clear idea of node.js

2: You must have basic knowledge of ajax while learning node.js

If you have any specific query while implementing it, feel free to ask

Thanks

A simple way to do auto-refresh would be using a setTimeout function which calls another function which makes an ajax call and on success of that ajax call, the response can be used to refresh any particular DOM element in the page. At the end of the you called function you can call your first function again which makes it recurring. In the following example you just have to call time and it will work till it calls itself 10 times.

Example:

function time(i) {
    setTimeout (
        function() {
            console.log('abc '+i);
            if(i<10) {
                time(++i);
            } else {
                console.log('finished recurring function');
            }
        }, 1000);
}

time(0);

This note is to the admin/developer of CE you should provide edit functionality to the person who wrote a reply...

Nirmal ParwateThis note is to the admin/developer of CE you should provide edit functionality to the person who wrote a reply...

The new registrations aren't allowed to edit their posts for a reason - they would register, make a regular post, log-in after a few days and add spammy links to their posts.

PS: You should see the permissions on your account pretty soon.

Kaustubh KatdareThe new registrations aren't allowed to edit their posts for a reason - they would register, make a regular post, log-in after a few days and add spammy links to their posts.

PS: You should see the permissions on your account pretty soon.

Okies, i'll check that.. Thanks

Does an AJAX call affects revenues or it happens only on page refresh??

Nirmal ParwateDoes an AJAX call affects revenues or it happens only on page refresh??

Yes it does; for the ads that rely on pageviews.

SignalR is also amazing in this context.
One might take a look #-Link-Snipped-#

Abhishek RawalRecently I noticed an "autorefresh" feature in a website.

Great ! thanx bro, you have solved some problems.

so much wrong info being shared here. Twitter or any top site like Facebook, does not use AJAX or timeout refreshes. They use web sockets. For HTML5, <a href="https://www.w3.org/TR/2014/WD-push-api-20141007/#example" target="_blank" rel="nofollow noopener noreferrer">Push API</a> is being 'pushed'.

DON'T USE AJAX FOR THIS KINDA SHIT. THAT'S JUST HORRIBLY WRONG.