iteration.js

function iterateArrayToFirstResult(arr){
  loop: {
    for (var i=0; i<arr.length; i++) {
      if (arr[i]==42) {
        console.log('You just found answer to the ultimate question of Life');
        break loop;
      }
      console.log('Your array havent number 42');
    }
  }
}

iterateArrayToFirstResult([2,3,42,5,6]);