A modern programming language that makes developers happier.

kotlinlang

maybe `iAmAVar?.let{ it+"XXX" } ?: "XXX"`

`iAmAVar` is a `Foo`, not a `String` though...

would be `iAmAVar?.let{ it.name+"XXX" } ?: "XXX"`, right?

imho a bit of an overuse of let here. But... it's opinion.

let is here for nullity-check, that's exactly his goal

No, it's not really. `let` is here for things where you need want to access something exactly once but need that "captured" value multiple times.
Example:
```
val thing = myExpensiveMethod()
// do stuff with thing
```
Can be rewritten as:
```
myExpensiveMethod().let { thing -&gt; 
   // do stuff with thing
}
```

But, like I said, it's opinion. I think your version is a lot less redable.

Hmm ok, was not how I understood this, thanks!
I'm still a beginner :slightly_smiling_face:

I use `with` for this use case.
/me back in kotlin docs to find out best practice