How to set that whenever a button click , a last number from a label will be removed

[ideaappstudios]

i wanted to know that how to set that whenever a button click , a last number from a label will be removed
like for example the backspace button
please help me @muneer

[muneer]

Check this code

Here is a demo
https://x.thunkable.com/projectPage/622f0aad2b247a001179573e

[ideaappstudios]

thank you so much