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kotlinlang

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Android Studio doesn't `rollButton.text = "Press"`, as shown by the underscore under `text`:

What's wrong with the code (besides the string literal)? When I take Android Studio's suggestion to convert assignment to assignment expression, it converts the code to this monstrosity:
```"Press".also { rollButton.text = it }```

The other suggestion is to add method contract to `setText`.

FTR, I found out elsewhere that the underline just means that `text` is a `var`, not that anything is the matter.

underscore it’s standard syntax highlighting in kotlin for mutable variables, properties
The goal of it not only show that it mutable, but partially discurage it

about “apply” block, it’s not a suggestion, it’s called “quickfix”, it’s just a context action available for this line of code, for example if you press Alt+Enter on forEach you will see “replace with for loop”, so it’s not really a suggestion, but some shortcuts for common idioms