The **`list.head` function** in Scala returns the reference of the first element in the list.

The image below shows the visual representation of the `list.head` function.

#    
#  Syntax

```scala
list_name.head
// where the list_name is the name of the list.
```
### Parameters

This function does not require a parameter.

### Return value
The `list.head` function returns the reference to the list's first element.
- `list.head` does not remove that element from the list.

- If the list is `empty`, then the function throws an `error`.

##  
## Code
The below code shows how to use the `list.head` function in Scala.


object Main extends App {
  var list = List(1,4,3,2,0)
    
  // list = 1 -> 4 -> 3 -> 2 -> 0
  println("Following are the elements in List before using list.head: " + list);
  println("The element on the head of list: "+list.head);
  println("Following are the elements in list after using list.head: " + list);
}

What is the list.head method in Scala?

It returns the first element of the list; throws an error if the list is empty.