- Understand how the
loop
construct works - Build a method that utilizes the
loop
construct
The first looping construct that we'll discuss is loop
. This is the simplest
looping construct that we have in Ruby. It simply executes a block (the code
that is between the do
and end
keywords). Try this in IRB in your Terminal:
loop do
puts "I have found the Time Machine!"
end
This will output I have found the Time Machine!
an infinite number of times in
your Terminal. Use Control
+C
to break out of the loop in your terminal.
This is the first in a series of short exercises to help you get the hang of looping constructs.
-
There are no tests for this lab, so code your solution in
looping.rb
:-
It's your first class in driving school and you're trying to remember important rules of the road. Fill out the content of the method
looping
to contain aloop
thatputs
the phrase"Never pass a school bus if it has flashing red lights"
an infinite number of times. -
Beneath your method definition, call your method by typing the name of the method,
looping
.
-
-
Then, run the file by typing
ruby looping.rb
in your terminal from the directory of this lab. You'll be stuck in an infinite levitation loop! HitControl
+C
to exit the infinite loop.
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