Looping with delay

looping_delay.js

// Loop for doesn't work
/*
for (var i=1; i < 5; i++) {
  setTimeout(function () {
    console.log('test');
  }, 3000);
}
*/

// Solution
(function delayLoop(i){
  setTimeout(function(){
      console.log('test');
      if(i--) delayLoop(i);
    },3000);
})(5);
// each 3s we have an iterartion for 'i' time