JSFiddle - React, Tailwind, and code Playground
HTML
<button id="sel">
sel
</button>JavaScript
sel.onclick=function(e){console.log(0)};
sel.addEventListener('click', sel.onclick);
sel.onclick=function(e){console.log(1)};
sel.setAttribute("onclick","console.log(2);a="+sel.onclick+";a()");
sel.setAttribute("onclick","console.log(3);"+sel.getAttribute('onclick'));