how to iterate on a key inside of objects that are placed inside of an array code example

Example 1: javascript loop through array of objects

let arr = [object0, object1, object2];

for (let elm of arr) {
  console.log(elm);
}

Example 2: javascript loop through array of objects

var arr = [{id: 1},{id: 2},{id: 3}];

for (var elm of arr) {
  console.log(elm);
}