I have a class that does not take any parameters w...

# getting-started

[Dan O'Brien]

I have a class that does not take any parameters when instantiating, but it has a number of properties I need to set after. Is there any clean way to use a lambda or similar to set all of the properties inside one {} block after instantiating the class?

[Joffrey]

You can use apply for this:

val x = YourClass().apply {
    prop1 = 42
    prop2 = "test"
}

[Dan O'Brien]

thank you!! That will be so much cleaner

[Joffrey]

You can look up "scope functions" for this kind of little methods such as let , also, apply , run and with .

They are all variations of the same thing, you have access to the instance as this or as parameter, and it either returns the initial object or the result of the lambda.