Ds\Vector::first
Returns the first value in the vector.
Description
public mixed Ds\Vector::first
( void
)
Parameters
This function has no parameters.
Return Values
The first value in the vector.
Errors/Exceptions
UnderflowException if empty.
Examples
Example #1 Ds\Vector::first example
<?php
$vector = new \Ds\Vector([1, 2, 3]);
var_dump($vector->first());
?>
The above example will output
something similar to: