Is it better to use

variable?.let{...}

or

if (variable != null) {...}

?

if

variable

is a local stack variable, I'd go with option 2 since its brain dead. If

variable

is a field, option 1 is more elegant

sorry, I don't understand what "brain dead" means in this context

any programmer from a C-like language is going to know what

if(x != null){ doStuff(x) }

means