scriptswap.py

from fasthtml.common import *

app, rt = fast_app()

@app.get("/showtime")
def showtime():
  return Script("document.getElementById('time').innerText = (new Date()).toLocaleTimeString();" id='showtimescript')

@app.get("/")
def home():
  return (
    Div(id='time'),
    Script(id='showtimescript'),
    Button('Show Time', hx_get='/showtime', hx_swap='outerHTML', hx_target='#showtimescript'),
  )

serve()