How I Refactored My Widget Embed Code: From 8 Lines of JavaScript to a Single Data Attribute

I've simplified the embed code for telegram chat widget by pasting just one line. Here is the technical journey behind it. After creating a chat widget JavaScript file, the embed code looked like this: src= "https://birdychat.com/js/widget.js" > document . addEventListener ( ' DOMContentLoaded ' , function () { init ( ' da0a042d-78b7-4b0b-98b6-bc05a8c119c4 ' ); }); The embed code was cumbersome because it consisted of two separate parts: External resource loader: src= "https://birdychat.com/js/w