kotlin-extensions

An assortment of Kotlin extension functions.

Examples

List.toggle

Make a copy of a List that contains a new element or no longer contains that element dependent on whether it was part of the collection before.

val list = listOf(1, 2, 3)

list.toggle(2) // [1, 3]
list.toggle(5) // [1, 2, 3, 5]

List.plusIfNotNull

Make a copy of a List with an added element or return the unmodified collection if the element to be added is null.

val list = listOf(1, 2)

list.plusIfNotNull(3) // [1, 2, 3]
list.plusIfNotNull(null) // [1, 2]

List.replaceWith

Make a copy of a List replace elements that match a predicate with a provided element.

val list = listOf(1, 2, 3, 4)

list.replaceWith(0) { it % 2 == 0 } // [1, 0, 3, 0]

Binaries

dependencies {
    implementation "cc.femto:kotlin-extensions:0.3"
}

Requires the JitPack repository:

repositories {
    maven { url "https://jitpack.io" }
}