Why is it giving no output

Question

letter ="qwertpoiuyasdfglkjhzxcvbnm QWERTYUIOPASDFGHJKLZXCVBNM"

msg = "jagwuwbs72628+2-#:"
ans = ""

for x in msg:
if x in letter:
ans + x
continue

print(ans)

Answer 1

ans = "" You print an empty string.

Make it ans = ans + x
And what is the continue supposed to do?

Answer 2

Thanks

Answer 3

It had a reason.
But not now