If your issue is simply it doesn't call for first time then it is OK

function doThis(){
console.log("hello");
}
const time = 1000;
doThis(); // Calls for the first time
setInterval(doThis(),time); // Now it starts the samething.


//There is another option also for same thing:

setInterval(function doThis() {
  console.log('hello');
  return doThis();
}(), time);

But It is not recommended if function takes longer than delayed time More on this statement: https://dev.to/akanksha_9560/why-not-to-use-setinterval--2na9

https://chrisblackwell.me/setinterval-is-bad/

function doThis() {
console.log("hellow");

  setTimeout(doThis, 1500);
}
doThis();

The problem that happens with setInterval doesn't happen here, because this only schedules the next iteration, not all future ones.

For setInterval For setTimeout