In this example, we take an array of objects holding rock bands and the year they were formed and then use bands.filter() to provide a function that will give us a new array holding only the bands ...

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. Today, we ...

Since this new object is a JavaScript array, Arquero methods won’t work on it anymore, but conventional array methods will. Here’s an example: 'The regions are ' + region_array.join(', ') ...