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Iterate Over Collections

This video was last updated on May 3 2022

Learn how to use your existing knowledge of for loops to iterate over collections.


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Using the for-loop is pretty helpful but as you’ve seen, it’s required a bunch of setup as well as management. Often times, you’ll have a list of items and you’ll just want to loop over it to use the current item.

var movies = ['Aliens', 'Interstellar', '2001', 'Event Horizon'];
for() {

for(var movie) {

for(var movie in) {

for(var movie in movies) {

for(var movie in movies) {
var sentence = 'this space for rent';
for (var word in sentence) {