notes/node_modules/lodash/_getSymbols.js

var arrayFilter = require('./_arrayFilter'),
    stubArray = require('./stubArray');

/** Used for built-in method references. */
var objectProto = Object.prototype;

/** Built-in value references. */
var propertyIsEnumerable = objectProto.propertyIsEnumerable;

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeGetSymbols = Object.getOwnPropertySymbols;

/**
 * Creates an array of the own enumerable symbols of `object`.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of symbols.
 */
var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
  if (object == null) {
    return [];
  }
  object = Object(object);
  return arrayFilter(nativeGetSymbols(object), function(symbol) {
    return propertyIsEnumerable.call(object, symbol);
  });
};

module.exports = getSymbols;