Display array elements with delay

Question

I have an arrays=[John; Alex; Mark], I wanna to show the elements of this array one by one by 3 second delay.

for (var i=0; i<=3; i++)
  {
          


        

Answer 1

Try this without pseudo-recursion

var arr = [10,20,30,40]; // your array
var i = 0;
var interval = 2000 // 2 sec, you can add your time required
function callInterval() {
// set a variable for setInterval
	var time = setInterval(()=>{
		console.log('['+arr[i]+','+i+']');
		i++; 
		if(i==arr.length){
			this.clearInterval(time);// clear the interval after the index
		}
		}, interval);
}

callInterval();