settimeout in loop javascript

1var array = [1, 2, 3, 4, 5]for(var i = 0; i < array.length; i++) {  setTimeout(() => {    console.log(array[i])  }, 1000);} // i = 5

1//you can leave the sleep constant
2const sleep = (milliseconds) => {
3  return new Promise(resolve => setTimeout(resolve, milliseconds))
4}
5
6const doSomething = async () => {
7  for (/*for loop statements here*/) {
8  //code before sleep goes here, just change the time below in milliseconds
9   await sleep(1000)
10  //code after sleep goes here 
11    }
12  }
13doSomething();

1// make sure to use "let" and not "var" if you want to capture
2// the value of the external variable in a closure
3
4  for (let i = 0; i < 5; i++) {
5    setTimeout(() => console.log(i), 0);
6  }