[JASS] boolexpr question

[Element of Water]

I noticed there are two ways to make a boolexpr. Condition() and Filter(). My question is, is there any difference between the conditionfunc that Condition() returns and the filterfunc that Filter() returns and which is the best to use?

 

[The Reborn Devil]

I'm not sure, but I always use this:

local boolexpr e
set e = Condition(function SOME_FUNCTION)

 

[Element of Water]

That's what I always used to use. Until I noticed some people use Filter(). Now I have no idea which one is best...