延迟javascript循环延迟

Question

I have a loop that already has a delay like this

for (var i = 0; i < 100; i++) {
    setTimeout( function (i) {
        console.log("Hai")
    }, 1000*i, i);
}

if using coding above it will be executed with a 1 second pause for 100 repetitions

here I want to add one more delay where if it reaches 5 times it will pause longer eg 30 seconds then continue again before the delay

example :

Hai .. delay 1 second
Hai .. delay 1 second
Hai .. delay 1 second
Hai .. delay 1 second
Hai .. delay 1 second
delay 30 second 
Hai .. delay 1 second
Hai .. delay 1 second
Hai .. delay 1 second
Hai .. delay 1 second
Hai .. delay 1 second

Is that possible?

Answer 1

const timeout = ms => new Promise(res => setTimeout(res, ms))
async function sayHai() {
  for (var i = 0; i < 100; i++) {
      await timeout(1000);
      console.log("Hai");
      if ( (i%5) == 4 ) await timeout(30000);
  }
}

Answer 2

The simplest way, without promises.

let i = 1
function timeout(){
    i++
    setTimeout(()=>{
        console.log("Hai")
        timeout()
    },i % 5 === 0 ? 30000 : 1000)
}
timeout()