variable?.run{ }

== run this block if this thing is not null? correct?

Yes, but keep in mind it uses

variable

as it’s context. Lets say

variable

contains some member function foo, and we’ll look at how all the neato blocks return:

val result = resultvariable?.run{
  foo()
}

result == Unit

val result = variable?.apply{
  foo()
}

result == variable

val result = variable?.let{
  it.foo()
}

result == result of foo()

val result = variable?.also{
  it.foo()
}

result == Unit

Hope this helps!