Passing variables between functions client-side

Anvil Q&A
1

What I’m trying to do:

Make it so that my button_click function can access a variable set during init (or in any other function client side), without resorting to data tables which slow down the app, whose USP will be near-instant loading times.

For example, I want to set a variable ‘letter’ as ‘A’ upon init, and have the button click function know that ‘letter’ = ‘A’.

Ghastly hack used so far:

Setting hidden label component text with the variables I want to be able to access.

Question:

Is there a proper way of doing this client side that I’ve missed, without involving lots of code or data tables e.g. something similar to using ‘self’ as it applies to accessing components?

2

You could set an attribute on the form instance during its init:

class MyForm(MyFormTemplate):

    def __init__(self, **properties):
        self.letter = "A"
        self.init_components(**properties)

    def button_click(self, **event_args):
        print(self.letter)
1 Like
3

This works beautifully, thanks!