Challenge:: Happy Numbers

Question

Take a positive number.
Replace it by the sum of the squares of its digits.
Continue the process until the result is a one digit number.
If the number ends in 1 as the one digit number, it is said to be a Happy Number.

The Challenge is to Write a code to output all the Happy Number within a given range.

For example

31
3²+1²=10
10
1²+0²=1

So 31 is a happy number.

Come on coders, show your talent.

Answer 1

My try:
https://code.sololearn.com/WTkRk0r6nxzd/?ref=app

Answer 2

https://code.sololearn.com/cQrj6XdvguyT/?ref=app

Answer 3

Here we go
https://code.sololearn.com/coqQKId0f8Z4/?ref=app

Answer 4

https://code.sololearn.com/cuJ6ekgSTyE4/?ref=app

Answer 5

my too late submmit https://code.sololearn.com/cymJJVP2fNp8/?ref=app

remembered by https://www.sololearn.com/Discuss/743847/?ref=app

Answer 6

I'm going to work on this later once I finish another challenge I'm working on.

Answer 7

Here ya go! Checks for valid input.
https://code.sololearn.com/cApaluRzZbiI/?ref=app

Answer 8

This is not spam.
https://www.sololearn.com/Discuss/583904/?ref=app