JSFiddle - React, Tailwind, and code Playground

HTML

<a id="p1">I am link 1</a>
				<a onclick="javascript:alert('hi');">I am link 2</a>
				<a>I am link 3</a>
				<a>I am link 4</a>

JavaScript

$(document).ready(function()
	{
		document.getElementById('p1').onclick = function() { alert('hi'); };
		$('a').each(function()
		{
			if(this.onclick == null)
			{
				alert("Link " + this.innerText + " does not have a onclick event");
			}
			else
			{
				alert("Link " + this.innerText + " does have a onclick event");
			}
		});				
	});