Fizz Buzz Bang

FizzBuzzBang.markdown

Fizz Buzz Bang

A Pen by Andy Terranova on CodePen.

License.

script.js

// From 1-100 inclusive
for (var i = 1; i <= 100; i++) {
  // Start with an empty string
  var output = '';
  
  /*
   * Fizz: Is it a multiple of 7?
   * If divide by 7 remainder is zero, then yes
   */
  if (i % 7 === 0) {
    output += 'fizz';
  }
  
  /*
   * Buzz: Does it have a 7 in it?
   * Two ways this can happen: tens digit or ones digit
   */
  if (i % 10 === 7 || // Check the ones digit first because it's less expensive
      parseInt(i / 10) === 7) // Check the tens digit (parseInt removes decimal)
  { 
    output += 'buzz';
  }
  
  /*
   * Bang: Is it a double?
   * In other words, is it a multiple of 11?
   */
  if (i % 11 === 0) {
    output += 'bang';
  }
  
  /*
   * Did it not satisfy any of the conditions?
   * Then just output the number itself
   */
  if (output.length === 0) {
    output = i;
  }
  
  // Actually print it out
  console.log(i + ' = ' + output);
}

I like what you did for buzz. Would you do something similar if the limit was higher, say 10,000 instead of 100?

That's a really good question - probably not. Might just suck it up and go the toString route. Even though it's more expensive, it easily simplifies out to higher limits.