What is an array?

An array is an ordered collection of elements of the same type with a fixed size.

// declaring an array of 5 integers
var a [5]int

// assigning values to elements
a[0] = 10
a[4] = 50

// accessing elements
x := a[0] // x = 10

Main characteristics:

• Fixed size: The size of the array is determined at its declaration and cannot be changed during runtime.
• Elements of the same type: All elements of the array must have the same data type.
• Sequential storage: Array elements are stored sequentially in memory, providing fast access by index.
• Indexing: Access to elements is done by a numeric index, starting from 0.