JSFiddle - React, Tailwind, and code Playground

by Ayan Ghatak

HTML

<p>This is a basic tag input: 
    <input id="tag1" value="0" />
    <button type="button" id="btn">Add +10</button>
</p>

CSS

#wrapper { 
 margin: 20px;    
}

JavaScript

function clickFN () {
	var tag1Elem = document.getElementById("tag1");
  tag1Elem.value = parseInt(tag1Elem.value,10) + 10;
}
document.getElementById("btn").addEventListener("click", clickFN);