// Bonfire: Finders Keepers
// Author: @priyesht
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function find(arr, func) {
  var num;
  num = arr.filter(func);
  return num[0];
}

find([1,3,5,8,9,10], function(num){ return num % 2 === 0; });