what does the apply button do?

[chanansh]

It's not clear what does the apply button do

[renanxx1]

I'm facing the same difficult. I haven't found anything about the button or how to get the text return.

[badayvedat]

It is sad that docs do not mention it but you can access it using the return value of the component

result = st_ace('Type here', key='mytextarea')
print("Provided code:", result)

[NichtJens]

If auto_update=False, the editor only processes if this button is pressed. I.e., you'd only get the contents of the editor once the user is done, and presses apply.

If auto_update=True, the editor processes after every keystroke, and you get the contents as it changes for every change. The apply button is not shown in that case.

This button was introduced here: #2