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.

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 ...

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.