author(s): Tao Xin

HTML

<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/vanjs-org/van/public/van-1.6.1.nomodule.min.js"></script>

JavaScript

const {button, pre, span} = van.tags

const Stopwatch = () => {
  const elapsed = van.state(0)
  let id
  const start = () => id = id || setInterval(() => elapsed.val += .01, 10)
  return span(
    pre({style: "display: inline;"}, () => elapsed.val.toFixed(2), "s "),
    button({onclick: start}, "Start"),
    button({onclick: () => (clearInterval(id), id = 0)}, "Stop"),
    button({onclick: () => (clearInterval(id), id = 0, elapsed.val = 0)}, "Reset"),
  )
}

van.add(document.body, Stopwatch())

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JSFiddle - React, Tailwind, and code Playground

author(s): Tao Xin

HTML

JavaScript

Please Whitelist JSFiddle in your content blocker.

Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

Fiddle collections

Private collections and fiddles

Console