Fizz, buzz, fizzbuzz
I was hit by a simple question today: write a fizzbuzz in ruby. Pretty fun anyway.
What’s Fizzbuzz?
Write a program that prints the numbers from 1 to 100. But for multiples of three print “Fizz” instead of the number and for the multiples of five print “Buzz”. For numbers which are multiples of both three and five print “FizzBuzz”.
I started from this:
class Fixnum ... end
I think it was a little overkill and slow the coding speed a lot. Here is the result:
def fizzbuzz
(1..100).each { |item|
puts print_value(item)
}
end
def print_value(item)
print_value = ''
print_value += 'Fizz' if item.div_by_3?
print_value += 'Buzz' if item.div_by_5?
print_value.empty? ? item : print_value
end
class Fixnum
def div_by_3?
self % 3 == 0
end
def div_by_5?
self % 5 == 0
end
end
fizzbuzz
Here are some simple samples from internet:
One liner:
1.upto(100) { |n| puts n % 3 == 0 ? n % 5 == 0 ? "fizzbuzz" : "buzz" : n % 5 == 0 ? "fizz" : n }
Another one liner:
puts (1..100).to_a.collect { |i| i % 15 == 0 ? ‘fizzbuzz’ : (i % 5 == 0 ? ‘fizz’ : (i % 3 == 0 ? ‘buzz’ : i)) }.join(’ ‘)
One more one liner
puts (1..100).map{|i|i%15==0?’FizzBuzz’:i%5==0?’Buzz’:i%3==0?’Fizz’:i}
Regular one, pretty close to mine:
(1..100).each{|i|
x = ''
x += 'Fizz' if i%3==0
x += 'Buzz' if i%5==0
puts(x.empty? ? i : x);
}
Want to know more?
- Coding Horror: Why Can’t Programmers.. Program?
- Imran On Tech: Using FizzBuzz to Find Developers who Grok Coding
- Wikipedia: Bizz buzz
- RubyQuiz: FizzBuzz (#126)
Go back to practice more, and more…
Spotlight from Apple.
MenuCalendarClock
Built-in bluetooth menu item from Apple.
Built-in input source menu item from Apple.
These three are all
Built-in AirPort from Apple and 
Well, finally. Last but absolute not least.