javascript return result while looping code example

Example 1: example of while loop in javascript with array length

var soccerTeams = ['Barca','Madrid','Gunners','City','PSG']
var x=0;

while( x <= soccerTeams.length) {
  console.log(soccerTeams[x])
  x++;
}

======== output ===========
Barca
Madrid
Gunners
City
PSG
undefined
5

Example 2: while loops js

while (10 > 1) {
  console.log("HI");
}