A modern programming language that makes developers happier.

kotlinlang

I have my own variations of `let` that return the original object, so if I want to allocate something and adjust it, but still return it without fail:

```
public inline fun &lt;T&gt; T.initializedBy(initWith: (T) -&gt; Unit): T {
    initWith(this)
    return this
}

val mapThing = ImmutableSettingsBuilder() initializedBy { 
      it.put("default" to "value") 
      it.put("other" to "value") 
}.build()
```

You can do the same with `let` but it COULD change the result type.