code: function strictLastIndexOf(array, value, fromIndex) {
      var index = fromIndex + 1;
      while (index--) {
        if (array[index] === value) {
          return index;
        }
      }
      return index;
    }
docs: A specialized version of `_.lastIndexOf` which performs strict equality
  comparisons of values, i.e. `===`.
  
  @private
  @param {Array} array The array to inspect.
  @param {*} value The value to search for.
  @param {number} fromIndex The index to search from.
  @returns {number} Returns the index of the matched value, else `-1`.