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deep-query-selector-all

v1.1.0

Published

Use QuerySelectorAll and also find elements inside web components and slots

Downloads

15

Readme

DeepQuerySelectorAll

deepQuerySelectorAll is like querySelectorAll but also finds elements inside web components and slots

With the standard querySelector and querySelectorAll function, you can't find elements inside web components. Those elements are hidden inside the Shadow DOM.

With deepQuerySelectorAll you can find those elements. It will find elements that are part of the web page, elements that are part of web components and elements that are inserted using slots.

This can be useful when using web components from third parties and there is no API available to make desired changes to those web components.

WARNING: Don't use this with web components you own or you can control. If you want to make a change or read data inside a web component, add this functionality to the web component API and use that functionality. If you still use deepQuerySelectorAll on your own web components because it's quick and easy, you'll lose all claims to call yourself a respectable developer.

Installation

npm install --save-dev deep-query-selector-all

API

deepQuerySelectorAll(query [, rootElement])

Parameters

| Name | Type | Description | |---------|------------------------|----------------------------------------------| | query | string | Query to use, similar to querySelectorAll | | rootElement | Element (optional) | Root element to query, document by default |

Example

Find all div's with classname product, even when inside webcomponents.

import {deepQuerySelectorAll} from "deep-query-selector-all";

const productElements = deepQuerySelectorAll("div.product");

Demo

In the repository, you can find a demo directory with a webpage that demonstrates the use of deepQuerySelectorAll.

License

Copyright 2023 Edwin Martin and released under the MIT license.