Disclaimer: This test only covers a very small paradigm of usage, and simply testing the speeds of these processes using particular objects. The efficiency of each object setup can change dramatically when, for instance, adding a 3rd value to the array. The test download is available on my site. If you want to check it out or add to it, please feel free to post here.
Often I want to pair a dynamic value to a static value. But I've wonder which method is the most computationally efficient. I see a lot of people using [pak], but which method is actually fastest? [pak], [pack], or [prepend]/[append]?