hi guys I’m trying firebase phone authenication. So i want to check that the number that user entered in textbox that number lenght should be 10 digit. I have tried math blocks but it’s not working. Can you please help me. Btw Thank your for Reading 
See here
You can use inbuilt blocks itself.
Use On text changed block, use the maths block (if length of the text box is equal to 10 make the app) to proceed further. If not use the notifier to pop up the alert
Hey buddy thank you so Much
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