io.justdevit.kotlin.boost.extension.Set.kt Maven / Gradle / Ivy

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Library to boost working with Kotlin/JVM projects.

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package io.justdevit.kotlin.boost.extension

/**
 * Maps the elements of the set to a new set based on the provided mapper function.
 *
 * @param mapper The function used to map each element of the set.
 * @return The resulting set after applying the mapper function to each element of the set,
 *          or an empty set if the input set is null.
 * @param T The type of the elements in the input set.
 * @param U The type of the elements in the resulting set.
 */
fun  Set?.mapOrEmpty(mapper: (T) -> U): Set = this?.map { mapper(it) }?.toSet() ?: emptySet()