http://www.freecodecamp.com/robertsheacole 's solution for Bonfire: Falsy Bouncer

bonfire-falsy-bouncer#.js

// Bonfire: Falsy Bouncer
// Author: @robertsheacole
// Challenge: http://www.freecodecamp.com/challenges/bonfire-falsy-bouncer#
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function bouncer(arr) {
 
  function deleteFalsey(arr){
    return Boolean(arr);
  }
  
  var placeholderArray = arr.filter(deleteFalsey);
  return placeholderArray;
  
}

bouncer([7, "ate", "", false, 9]);