JSFiddle - React, Tailwind, and code Playground

by dying_sakura

HTML

<textarea class="input" id="textsend" onkeyup="success()" name="demo" placeholder="Enter your Message..."></textarea>

<input type="file" id="image" onkeyup="success()">
<button type="submit" id="button" disabled>Send</button>

JavaScript

function success() {
	 if(document.getElementById("textsend").value==="" || document.getElementById("image").value==="") { 
            document.getElementById('button').disabled = true; 
        } else { 
            document.getElementById('button').disabled = false;
        }
    }