Stop setInterval call in JavaScript

Question

I am using setInterval(fname, 10000); to call a function every 10 seconds in JavaScript. Is it possible to stop calling it on some event?

I want the us

Answer 1

clearInterval()

Note, you can start and pause your code with this capability. The name is a bit deceptive, since it says CLEAR, but it doesn't clear anything. It actually pauses.

Test with this code:

HTML:

100
Start
Stop

JavaScript:

let count;

function start(){
 count = setInterval(timer,100)  /// HERE WE RUN setInterval()
}

function timer(){
  document.getElementById('count').innerText--;
}


function stop(){
  clearInterval(count)   /// here we PAUSE  setInterval()  with clearInterval() code
}