An **`Array`** is a data structure that holds a specific number of elements and cannot grow or shrink. It can also be defined as a data structure that consists of a collection of elements of a single type and can hold more than one value at a time. 

Different data types such as `Integer`, `String`, and `Boolean` are handled as elements in an array. 

We need to iterate over an array when certain operations will be performed on it. A **`for` loop** is best suited for this purpose.

The syntax to iterate over an array using a `for` loop is shown below:

for i := 0; i < len(arr); i++ {
    // do something
}

# 
## How to iterate over an array of integers
The code below demonstrates the iteration over an array of integers. The array has a size of `5` and we iterate over the elements using a `for` loop.

package main
 
import "fmt"
 
func main() {
    
    arr := [5]int{11, 12, 13, 14, 15}
 
    for i := 0; i < len(arr); i++ {
        fmt.Println(arr[i])
    }
}

In the code above, the variable `i` is initialized as 0 and is incremented after every iteration until it reaches a value equal to the array's length. The `Println` statement prints the elements at each index of the array one after the other.  

The code above will produce the following output:

```Go
11
12
13
14
15
```

## How to iterate over an array of strings

The code below iterates over an array of strings. The **`range` keyword** sets the scope of iteration up to the length of the array. The variables `index` and `element` store the indices and values of the array, respectively.

package main
 
import "fmt"
 
func main() {
    arr := [3]string{"Jack", "James", "Jim"}
 
    for index, element := range arr {
        fmt.Println("Index", index, "has a value of", element)
    }
}

The output of the code above is:

```Go
Index 0 has a value of Jack
Index 1 has a value of James
Index 2 has a value of Jim
```

How to iterate over an Array using a for loop in Golang

How to iterate over an array of integers

How to iterate over an array of strings