JSFiddle - React, Tailwind, and code Playground
HTML
<button id="button-1" onclick="ButtonClick(this.id);">This is a button</button>
JavaScript
function ButtonClick(buttonID)
{
alert("Button " + buttonID + " pressed!");
}
<button id="button-1" onclick="ButtonClick(this.id);">This is a button</button>
function ButtonClick(buttonID)
{
alert("Button " + buttonID + " pressed!");
}