problem in while language

Using Arduino Programming Questions
1

hello...may i ask, is it valid to use while and if in the loop?

2

You mean nest an if statement within a while loop? Sure.

3

Arrch:
You mean nest an if statement within a while loop? Sure.

Although less common, you can also nest a while loop within an if statement.

4

Or if by loop you mean the void loop(), then yes to that as well.

5

"We don't know your question, but the answer is yes"