2. while True loops

See: https://www.w3schools.com/python/python_while_loops.asp

While loops run a set of statements as long as a test condition is true.

2.1. While true

while True: loops run forever.

Instead of using a condition that returns True or False, True is used in place of the condition to make the condition always True. As a result, the while-loop runs forever.

The statements within the loop are indented with the tab key (which is equivalent to 4 spaces) to make those lines part of the while-loop.

The while True loop below scrolls the text I never stop across the LED display, over and over again.

from microbit import *

while True:
    display.scroll('I never stop')

When testing code on the microbit, it can be useful to do it within a while True loop so the results can be seen over and over again.

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Questions

Find the error in the first line of these while loops.

1. while true:

2. While True:

3. while True

Q1

while true: error

# must have upper case T
while True:

Q2

While True: error

# must have lower case w
while True:

Q3

while True error

# must have colon at end
while True: