efx-api-node/examples/browser.html

<img src="https://avatars3.githubusercontent.com/u/33315316?s=200&v=4" align="right" />

<script src="../dist/efx.js"></script>

<script>

  // If your browser doesn't export window.web3
  // you must create the web3 object

  web3 = new EFX.Web3(/*your web3 provider*/)
  efx  = await EFX(web3)

</script>