kotlin-stdlib/kotlin.text/fold

fold

inline fun <R> CharSequence.fold(initial: R, operation: (acc: R, Char) -> R): R(source)

Accumulates value starting with initial value and applying operation from left to right to current accumulator value and each character.

Returns the specified initial value if the char sequence is empty.

Since Kotlin

1.0

Parameters

operation

function that takes current accumulator value and a character, and calculates the next accumulator value.