Arrays are wonderful and a very particular type in JavaScript. There are many useful built-in properties and methods that will help you resolve any task which involves this kind of type.

JavaScript’s reduce is one of the most useful array methods that should be in a developer’s arsenal. Introduced in ES5, it’s somewhat similar to for…each and map methods that are used with ...

Learn JavaScript's Array Reduce method in 100 seconds ... with some dread Is the universe really infinite? Astrophysicists explain.