code: function baseIndexOf(array, value, fromIndex) {
  	  if (value !== value) {
  	    return baseFindIndex(array, baseIsNaN, fromIndex);
  	  }
  	  var index = fromIndex - 1,
  	      length = array.length;
  
  	  while (++index < length) {
  	    if (array[index] === value) {
  	      return index;
  	    }
  	  }
  	  return -1;
  	}
docs: The base implementation of `_.indexOf` without `fromIndex` bounds checks.
  
  @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`.