function fill(array, value, start, end) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
        start = 0;
        end = length;
      }
      return baseFill(array, value, start, end);
    }
Fills elements of `array` with `value` from `start` up to, but not
including, `end`.

**Note:** This method mutates `array`.

@static
@memberOf _
@since 3.2.0
@category Array
@param {Array} array The array to fill.
@param {*} value The value to fill `array` with.
@param {number} [start=0] The start position.
@param {number} [end=array.length] The end position.
@returns {Array} Returns `array`.
@example

var array = [1, 2, 3];

_.fill(array, 'a');
console.log(array);
// => ['a', 'a', 'a']

_.fill(Array(3), 2);
// => [2, 2, 2]

_.fill([4, 6, 8, 10], '*', 1, 3);
// => [4, '*', '*', 10]