Ruby While Loops — ITLC Tutorials

Watch out! This tutorial is over 4 years old. Please keep this in mind as some code snippets provided may no longer work or need modification to work on current systems.

Tutorial Difficulty Level

The while loop is conventional, but it also has a postfix form.

# Some counting with a while.
a = 0
while a < 15
    print a, " "
    if a == 10 then
        print "made it to ten!!"
    end
    a = a + 1
end
print "\n"

# Here's a way to empty an array.
joe = [ 'eggs.', 'some', 'break', 'to', 'Have' ]
print(joe.pop, " ") while joe.size > 0
print "\n"

# Some counting with a while.

a = 0

while a < 15

print a, " "

if a == 10 then

print "made it to ten!!"

end

a = a + 1

end

print "\n"

# Here's a way to empty an array.

joe = [ 'eggs.', 'some', 'break', 'to', 'Have' ]

print(joe.pop, " ") while joe.size > 0

print "\n"

Related Tutorials