Clear Array accepts an input Array and proceeds to remove and delete all elements contained in it. After that the Node outputs the emptied Array with a size of 0.
Pulse Input (►)
A standard Input Pulse, to trigger the execution of the Node.
The input Array you wish to empty.
Pulse Output (►)
A standard Output Pulse, to move onto the next Node along the Logic Branch, once this Node has finished its execution.
The emptied output Array.
Arrays on Wikipedia.