apply
Calls block with this value as its receiver and returns this value.
Use this function to configure a value: this inside the block is the original receiver, and the block result is discarded. Nullable receivers are passed through. The block runs once; its exceptions propagate and it supports non-local returns.
val text = StringBuilder().apply {
append("Hello")
append('!')
}.toString()Content copied to clipboard
Receiver
value to configure and return.
Return
the original receiver, without copying it.
Parameters
block
action to run once with this receiver.
Type Parameters
T
type of the receiver, which may be nullable.