README.md

DEPRECATED, use this instead: https://github.com/acitd/dom-node-dependency-service

HTML Element Dependency Service

Makes some html elements dependent on others.
If the dependency is removed from the DOM, the dependents are also removed after a while.

Import

<script src="https://cdn.jsdelivr.net/gh/acitd/HTMLElementDependencyService/HTMLElementDependencyService.js"></script>

Initialization

You can create the service by defining the root element of the dependencies.

const dependency_service=new HTMLElementDependencyService(document.body);

Then just start the service.

dependency_service.start();

Define a depencency

To define an element as a dependecy you can use the add(...) method with this syntax:

𝘴𝘦𝘳𝘷𝘪𝘤𝘦.dependency(𝘥𝘦𝘱𝘦𝘯𝘥𝘦𝘯𝘤𝘺).of(...𝘥𝘦𝘱𝘦𝘯𝘥𝘦𝘯𝘵𝘴);

Example

const head=document.querySelector('head');
const main=document.querySelector('main');
const footer=document.querySelector('footer');
dependency_service.dependency(head).of(main,footer);    // we make the main and the footer element dependants of the head

const aside=document.querySelector('aside');
dependency_service.dependency(head).of(aside);    // we make the aside element too

// TEST
head.remove();    // now the head and all its dependents are removed afte a while

Use case

Let's say you render or add a button to the body, but for structural reasons you prefer to inject the css and js into the head.
In this case, you can make the style and script tag dependent on the button, so if for any reason the button is removed, its css and js are also removed.