This JavaScript code is designed to inject the **Eruda** developer...
This JavaScript code is designed to inject the Eruda developer console into a webpage. Here’s a breakdown of what it does:
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Immediately Invoked Function Expression (IIFE): The entire script is wrapped in an IIFE (
(function(){...})();), ensuring it runs immediately when added to the browser's address bar or executed dynamically. -
Create Variables:
dis assigned the currentdocumentobject.sis a new<script>element created usingdocument.createElement('script').
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Set the Source URL:
s.srcis set to'//cdn.jsdelivr.net/npm/eruda'. This loads the Eruda library from the jsDelivr CDN.
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Inject the Script into the Web Page:
d.body.appendChild(s)appends this new<script>tag to the webpage's<body>. This subsequently downloads and executes the Eruda library.
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Initialize Eruda After the Script Is Loaded:
- The
onloadevent of the script tag is defined. - Once the script finishes loading (
s.onload), theeruda.init()function is executed to initialize the Eruda console.
- The
Purpose: Eruda is a lightweight JavaScript library that brings a developer console (similar to the browser's built-in DevTools) directly into the web page. It can be especially useful for debugging JavaScript or inspecting web pages on mobile devices, where built-in browser DevTools might not be readily available.
Usage: This script is often saved as a bookmarklet. When run on a webpage, it adds the Eruda console to the current page, allowing developers to debug and inspect elements directly.