Meaning of "once", line 209

[MarkusPint]

There seems to be an option "once" you can add to the resource objects that are passed to basket.require(), but it is not documented anywhere.

The idea seems to be to prevent a loaded script from being executed again, if it is loaded a second time.

Should this be added to api.md?

[addyosmani]

If memory serves your comments are correct. We may not have added this to the docs as it wasn't considered for long-term use, but given its been there a while let's add to the docs.