JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app='hello'>
    <div>
        <button hello='world'>hello</button>
    </div>
</div>

JavaScript

var app = angular.module('hello', []);
app.directive("hello", function(){
    return function(scope, element, attr){
        element[0].addEventListener("click", function(){
            alert("hello, "+ attr["hello"]);
        });
    };
});