Removes all values from the deque.
This function has no parameters.
No value is returned.
Example #1 Ds\Deque::clear example
<?php$deque = new \Ds\Deque([1, 2, 3]);print_r($deque);$deque->clear();print_r($deque);?>
The above example will output something similar to:
Ds\Deque Object ( [0] => 1 [1] => 2 [2] => 3 ) Ds\Deque Object ( )