setTimeout with Loop in JavaScript

Question

I have a very trivial question. For a simple loop with setTimeout, like this:

for (var count = 0; count < 3; count++) {
    setTimeout(function() {
               


        

Answer 1

Easy fix here is to utilize es6 let local variable. Your code will look almost the same except it will do what you expect :)

 for (let count = 0; count < 3; count++) {
    setTimeout(function() {
        alert("Count = " + count);
    }, 1000 * count);

}

Or you could create a recursive function to get that job done, as following:

function timedAlert(n) {
  if (n < 3) {
    setTimeout(function() {
        alert("Count = " + n);
        timedAlert(++n);
    }, 1000);
  }
}

timedAlert(0);