7. javascript forEach.js

// declare an array
var fruits = ["apple", "orange", "banana", "pineapple"]
// loop over with items
fruits.forEach(function(fruit){
    console.log(fruit);
})
// output
// apple
// orange
// banana
// pineapple
// loop over with item and index
fruits.forEach(function(fruit,index){
    console.log("index: "+index+ " " + fruit);
})
// output
// index: 0 apple
// index: 1 orange
// index: 2 banana
// index: 3 pineapple