Has anybody here made a real-time website or application?

Question

Just wondering if any body here has made or been involved in projects where a real-time application was made either using communication transports such as AJAX or web-sockets etc?

If yes, how did it go? What programming languages was used?, Frameworks?, Project management methods? etc.

Apologies if the post is a little vague, first time posting on here and also looking to one day make my own real time application.

Answer 1

Here a simple real time stock data from US stock exchange centre

https://code.sololearn.com/W5wuAiSUGFlc/?ref=app

Answer 2

Code looks great!

For some reason within the JavaScript console the following message keeps on displaying,

"There has been a problem with your fetch operation: Cannot read property 'symbol' of undefined".

I noticed HTML, CSS, JavaScript and JSON was used, may I ask if there was any other languages used as well? Many thanks and great work!