Strings are objects within the JavaScript language. They are not stored as character arrays, so built-in functions must be used to manipulate their values. The functions provide various ways to ...

JavaScript’s arrays can hold heterogeneous types ... bandNames is an array that has just the string band names Array.map() is a very powerful mechanism for transforming arrays.

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.