Nested loops in arrays

let bobsFollowers = ['Mary', 'Jane', 'Tim', 'John'];
let tinasFollowers = ['John', 'Mary', 'Sam'];

let mutualFollowers = [];

for (let i =0; i < bobsFollowers.length; i++){
  for (let j =0; j < tinasFollowers.length; j++){  //note the use of different variable name j
    if (bobsFollowers[i] === tinasFollowers[j]){
      mutualFollowers.push(bobsFollowers[i]);  //i is the index(number) hence it should be push bobsFollowers[i] to push the value
    }
  }
}
console.log(mutualFollowers);