function last(array) {
      var length = array ? array.length : 0;
      return length ? array[length - 1] : undefined;
    }
Gets the last element of `array`.

@static
@memberOf _
@category Array
@param {Array} array The array to query.
@returns {*} Returns the last element of `array`.
@example

_.last([1, 2, 3]);
// => 3