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Questions - real-time-updates

How do I avoid unnecessary setState usage when receiving real-time user posts from Cloud Firestore?

I structured the feed and follow system according to the answer in the link below. https://stackoverflow.com/a/52153332/11427790 However, I have to use unnecessary setFeed method when receiving posts ...
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Süleyman Şentosun

reactjs

google-cloud-firestore

use-effect

feed

real-time-updates

Votes: 0

Answers: 0

update a HTML input field with the data coming from a external Javascript Websocket

I am new to JavaScript, not sure if this very basic question. I've created a Bitcoin Price update dashboard using the data fetched from the external WebSocket. I managed to get the data from the WebSo...
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US M AN

javascript

html

websocket

real-time

real-time-updates

Votes: 0

Answers: 2

Latest Answer

use this : const data= JSON.parse(event.data); let liveprice = document.getElementById("btcpricenow"); liveprice.value = parseFloat(data.p).toFixed(2) || "";
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milad shiriyan

Automatically Delete table rows after reaching row limit and add new data to the row using the Websocket data with javascript

I am new to JavaScript, not sure if this very basic question. I've created a Bitcoin Price update dashboard using the data fetched from the external WebSocket. I managed to get the data from the WebSo...
test-img

US M AN

javascript

arrays

json

real-time-updates

real-time-data

Votes: 0

Answers: 1

Latest Answer

You can get all rows in your table using querySelectorAll("tr"). You can remove elements from your table using removeChild. So, to make sure your table never grows past x rows, you do: const...
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user3297291

Automatically Add rows to the Table when new data comes from a The Websocket with Javascript

I am new to JavaScript, not sure if this very basic question. I am trying to create a Bitcoin Price update dashboard using the data fetched from the external WebSocket. I managed to get the data from ...
test-img

US M AN

javascript

websocket

datatables

real-time-updates

real-time-data

Votes: 0

Answers: 2

Latest Answer

Assuming that you have your table in HTML ready with the row for Bitcoin as below. Then just select the <td> cell for price and format the figure accordingly before inserting to it's textContent...
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Redu

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