function DoubleEndedQueue::peekFirst

Return value

T | null the head of this queue, or `null` if this queue is empty.

Overrides DoubleEndedQueueInterface::peekFirst

File

vendor/ramsey/collection/src/DoubleEndedQueue.php, line 148

Class

DoubleEndedQueue

This class provides a basic implementation of `DoubleEndedQueueInterface`, to minimize the effort required to implement this interface.

Namespace

Ramsey\Collection

Code

public function peekFirst() : mixed {
    return $this->peek();
}