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/*
* Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
package kotlin
/**
* Returns `true` if this char sequence is empty (contains no characters).
*/
@kotlin.internal.InlineOnly
public inline fun CharSequence.isEmpty(): Boolean = length == 0
/**
* Accumulates value starting with [initial] value and applying [operation] from left to right to current accumulator value and each element.
*/
public inline fun <T, R> Array<out T>.fold(initial: R, operation: (acc: R, T) -> R): R {
var accumulator = initial
for (element in this) accumulator = operation(accumulator, element)
return accumulator
}
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