I am confused with ::functionName. and functionName(), functionName.invoke(). What's the difference ...

# android

[chanjungskim]

I am confused with ::functionName. and functionName(), functionName.invoke(). What's the difference and how do they work?

[Chrimaeon]

functionName() is just a “shortcut” for using the invoke operator.
https://kotlinlang.org/docs/operator-overloading.html#invoke-operator

with ::functionName you get a reference to the function.
https://kotlinlang.org/docs/reflection.html#function-references