Class FutureTickQueue

Namespace: React\EventLoop\Tick
Located at Tick/FutureTickQueue.php

Methods summary
`public`	# `__construct( React\EventLoop\LoopInterface $eventLoop )` Parameters `$eventLoop` `React\EventLoop\LoopInterface` $eventLoop The event loop passed as the first parameter to callbacks.
`public`	# `add( callable $listener )` Add a callback to be invoked on a future tick of the event loop. Add a callback to be invoked on a future tick of the event loop. Callbacks are guaranteed to be executed in the order they are enqueued. Parameters `$listener` `callable` $listener The callback to invoke.
`public`	# `tick( )` Flush the callback queue. Flush the callback queue.
`public boolean`	# `isEmpty( )` Check if the next tick queue is empty. Check if the next tick queue is empty. Returns `boolean`