Arrays are a data structure that can store a collection of values. Depending on how they are implemented, these arrays can have items of single or multiple data types. This makes it easier to group similar elements in a program.
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data structureis a specialized format for organizing and storing a collection of data during programming.
The initialization of arrays is different in different programming languages, but the representation of arrays is the same in all of them. The items stored in an array are known as array elements. The position of each element in the array is the index. This index starts from 0 (not 1!) and allows us to find specific elements in the array. The length of an array is the number of elements the array can store or has stored in the array.
Understanding this representation is very helpful especially while performing array operations that we will see in the next section. For now, let's see how arrays are implemented in Python.