/** Built-in value references. */ /** 内置参考价值。 */ const propertyIsEnumerable = Object.prototype.propertyIsEnumerable; /* Built-in method references for those with the same name as other `lodash` methods. */ /* 内置的方法引用与其他“lodash”方法同名。 */ const nativeGetSymbols = Object.getOwnPropertySymbols; /** * Creates an array of the own enumerable symbols of `object`. * 创建“对象”的可枚举符号的数组。 * @private * @param {Object} object 要查询的对象。 * @returns {Array} 返回符号数组. */ function getSymbols(object) { if (object == null) { return []; } object = Object(object); return nativeGetSymbols(object).filter((symbol) => propertyIsEnumerable.call(object, symbol)); } export default getSymbols;