Is there a way to pass function with optional argument like kotlinlang #announcements

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Title

s

Saiedmomen

08/27/2019, 5:15 AM

Is there a way to pass function with optional argument like

fun fetchData(page=0) {...}

to a function that expects a function with no argument like?

fun runRequest(block: ()->Unit)

k

kralli

08/27/2019, 6:04 AM

You mean like

runRequest(::fetchData)

?

s

Saiedmomen

08/27/2019, 6:07 AM

yep

I thought there might be sth like

@JvmOverloads

that I've missed

b

Big Chungus

08/27/2019, 7:31 AM

fun runRequest(block: (()->Unit)? = null)

Function type behaves just like any other type and thus can be nullable. You can also pass in the default implementation such as

fun runRequest(block: (()->Unit) = {})

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