Kotlin reactive library inspired by Vue.js. It seeks to provide reactive primitives to kotlin for building functionally coupled systems.

In your build.gradle.kts file:

repositories { //... maven { url = URI("https://jitpack.io") } } dependencies { implementation("com.github.bendgk:effekt:1.0.0") }

EffeKt brings the following reactive primitives from vue to kotlin:

• ref
• computed
• watchEffect

A ref is a reactive primitive that can be read and written to. Ref's store a single value and a list of subscribers. When a ref is used as a dependency of another primitive (such as computed or watchEffect), that primitive is added as a subscriber to that ref. when a ref is updated we need to update all the subscribers too.

A computed is a reactive primitive that can only be read. Whenever a computed value is read its value is recomputed according to its dependencies.

watchEffect is a reactive helper function that can watch dependencies for changes. It runs the given side effect when a dependency change occurs.

var price by ref(2.00) var quantity by ref(1000) val revenue by computed { price * quantity } watchEffect { println("revenue: $revenue") } price /= 2 price *= 10 quantity += 500

Output:

> revenue: 2000.0 > revenue: 1000.0 > revenue: 10000.0 > revenue: 15000.0