can not get return value with on_click

[cwk0099]

it will return 0

[thunderbug1]

Mhm well I'm not sure how the button on_click works internally.
I'm open for pull requests if somebody knows how to make this work.

[Strings-RH]

The first call to st_javascript will return the default value, while in the expression is sent to the browser, evaluated and returned. If you add a key to the javascript call using PR #19, and use the on_change callback you could achieve your goal.

def display():
    print(st.session_state['REQKEY'])
def request():
    stjs(...script..., key="REQKEY", on_change=display)
clicked = st.button("Get", on_click=request)