How to use a while loop and None function properly?
2937
Asking the user for input until they give a valid response
3897
Why does append() always return None in Python?
85119
While-loop subshell dilemma in Bash
124178
Python Equivalent of setInterval()?
18775
Loop "Forgets" to Remove Some Items
142576
Why does [1].append(2) evaluate to None instead of [1,2]?
93594
how does do{} while(0) work in macro?
8979
Why use apparently meaningless do-while and if-else statements in macros?
116230
Using BufferedReader.readLine() in a while loop properly
97594
Python Script returns unintended "None" after execution of a function
2266
Why is my variable local in one 'while read' loop, but not in another seemingly similar loop?
131396
How to get Python to gracefully format None and non-existing fields
142658
C while loop - code won't work
95304
how to set a switch statement in while loop in java
152150
Python program does not execute beyond first user input
122930
add two lists then sort = None(?)
72878
Variables set in a bash 'while read' loop are unset after it