Ds\Deque::isEmpty
Returns whether the deque is empty
Description
public bool Ds\Deque::isEmpty()
Parameters
This function has no parameters.
Return Values
Returns true if the deque is empty, false otherwise.
Examples
Example #1 Ds\Deque::isEmpty example
<?php
$a = new \Ds\Deque([1, 2, 3]);
$b = new \Ds\Deque();
var_dump($a->isEmpty());
var_dump($b->isEmpty());
?>
The above example will output
something similar to: