code: function difference(array) {
      var result = [];
      if (!array) {
        return result;
      }
      var index = -1,
          length = array.length,
          flattened = concat.apply(result, slice.call(arguments, 1));
  
      while (++index < length) {
        if (indexOf(flattened, array[index]) < 0) {
          result.push(array[index]);
        }
      }
      return result;
    }
docs: Produces a new array of `array` values not present in the other arrays
  using strict equality for comparisons, i.e. `===`.
  
  @static
  @memberOf _
  @category Arrays
  @param {Array} array The array to process.
  @param {Array} [array1, array2, ...] Arrays to check.
  @returns {Array} Returns a new array of `array` values not present in the
  other arrays.
  @example
  
  _.difference([1, 2, 3, 4, 5], [5, 2, 10]);
  // => [1, 3, 4]