JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
<button onclick="start()">START the recursion</button>

JavaScript

var i = 0;

function start() {
    ++i;
    var is_thousand = !(i % 1000);
    
    if (is_thousand)
        console.log(i);

    if (i >= 100000) // safety halt at 100,000
        return; 
    else if (is_thousand)
        setTimeout(start, 0);
    else
        start();
}