Ds\Sequence::shift

Removes and returns the first value

abstract public mixed Ds\Sequence::shift()

Removes and returns the first value.

This function has no parameters.

The first value, which was removed.

UnderflowException if empty.

Example #1 Ds\Sequence::shift example

<?php
$sequence = new \Ds\Vector(["a", "b", "c"]);

var_dump($sequence->shift());
var_dump($sequence->shift());
var_dump($sequence->shift());
?>

The above example will output something similar to:

string(1) "a"
string(1) "b"
string(1) "c"