How to change data on a button?

Question

JavaScript

Faced such a problem, there is a certain button in it data of 3 types is displayed: 1) send a request 2) timestamp (how much time is left) 3) get the result. All this is interconnected with the database.

I am very interested in the 2nd point (time stamp), how to make the data on the button updated (output time format: 00:00:00), i.e. so that the user can see how much time is left without refreshing the page.

Answer 1

setInterval(updateKnopka, 1000)

function updateKnopka() { 
  /* раз в секунду меняет текст */
}

like this
https://codepen.io/jmikey/pen/tFHrp
of course, if the time somehow depends on how long the database will process the request, and the server sends the remaining time to the browser, then this complicates everything