every.js

// Bonfire: Everything Be True
// Author: @codebubb
// Challenge: http://www.freecodecamp.com/challenges/bonfire-everything-be-true
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function every(collection, pre) {
  // Is everyone being true? 
  return collection.every(function(e){
  	return Object.keys(e).indexOf(pre) !== -1 && e[pre];
  });
}