JSFiddle - React, Tailwind, and code Playground

HTML

<svg id="sss" viewBox = "0 0 500 300" version = "1.1">
 <defs>
   <path id="s3" d="M 10,90 Q 100,15 200,70 "/>
 </defs>

JavaScript

alert(document.getElementById('s3').getAttribute('d'));