Can someone explain this sentence?

[leoj3n]

bit-docs-js/tags/param.js

Lines 83 to 84 in 83f9821

	* params that specifies a name that isn't present is added at the end of
	* the arguments.

What does "Any params that specifies a name that isn't present is added at the end of the arguments" mean? At the end of what arguments? Is this saying it orders things by however the function definition is, and not what order @param tags come in the comment?