What is the choosing guide between `T.() -> R` ...

# dsl

[윤동환]

What is the choosing guide between T.() -> R and (T) -> R for function type?
First one called lambda with receiver and second one is the first class function.

[wakingrufus]

its kind of the same logic as run vs let

[spand]

Its obviously subjective but whatever works best for the caller. ie. in kotlinx.html its T.() -> R because T is more of a context (ie. its kind of optional to use it so its annoying to shadow another it) whereas for forEach {} its more of a parameter since it doesnt make sense to call forEach() without actually using it.