fcc_finders_keepers.js

// freecodecamp
// intermediate algorithm scripting
// finders keepers

function findElement(arr, func) {
  // create empty second array
  var arr2 = [];
  
  // filter through array
  arr.filter(function(item) {
    // if item in array is true with provided function
    if (func(item)) {
      // push item in to second array
      arr2.push(item);
    }
  });
  
  // sort the items in the second array from smallest to highest
  arr2.sort(function(a, b) {
    return a - b;
  });
  // return the second array at index 0 to return the desired result
  return arr2[0];
}

console.log(findElement([1, 2, 3, 4], function(num){ return num % 2 === 0; }));