JSFiddle - React, Tailwind, and code Playground

HTML

<button id="btn1">Click 1</button>
<button id="btn2">Click 2</button>

JavaScript

let btn1 = document.querySelector("#btn1");
let btn2 = document.querySelector("#btn2");

btn1.onclick = () => {
    setTimeout(() => msg("BOTÃO 1"), 1000);
};

btn2.onclick = () => {
    setTimeout(() => msg("BOTÃO 2"), 1000);
};

function msg(txt) {
    console.log(txt);
}