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causality

v1.0.0

Published

Composable Side-Effects for JavaScript

Downloads

2

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considerateconsiderate

Keywords

Readme

Causality

Build Status Codeship Build Status

Declarative and testable side-effects in JavaScript.

What's a Cause?

A cause is an object that describes how one or more side effects should be performed. It is important to note that a Cause in itself should be free from side-effects. It is only when the Cause is evaluated by the causality runtime that side-effects may occur.

Why would you need such an object?

By wrapping side-effects in declarative objects you increase the amount of code that may be tested in unit tests. Causes are designed in such a way as to allow for easy creation of mocks. The base Causes as included in this library are side-effect free and custom Cause performers created by Causes.create() are not run by default leaving you to replace custom performers by your own test-specific performers.