Array

: Transforms every item in an array and returns a new one.

: Most languages start counting at 0. To access the first item, you use index 0 , the second use 1 , and so on. Fixed vs. Dynamic Size : : Transforms every item in an array and returns a new one

Languages like JavaScript and Python use that can grow or shrink as needed. Essential Operations you use index 0

An array is a fundamental data structure used in programming to store an ordered collection of items of the same type in a single variable. Think of it like a row of buckets where each bucket holds one specific piece of data, such as a number or a string. the second use 1