lodash 源码阅读-cloneSymbol
/** Used to convert symbols to primitives and strings. */
const symbolValueOf = Symbol.prototype.valueOf
/**
* Creates a clone of the `symbol` object.
*
* @private
* @param {Object} symbol The symbol object to clone.
* @returns {Object} Returns the cloned symbol object.
*/
function cloneSymbol(symbol) {
return Object(symbolValueOf.call(symbol))
}
export default cloneSymbol