en.javascript.info/1-js/7-js-misc/3-setTimeout-setInterval/2-output-numbers-100ms-settimeout/solution.md

//+ run
function printNumbersTimeout20_100() {
  var i = 1;
  var timerId = setTimeout(function go() {
    console.log(i);
    if (i < 20) setTimeout(go, 100);
    i++;
  }, 100);
}

// вызов
printNumbersTimeout20_100();