Symbols are odd. Maybe it's just me but they feel like they work "funny" in JavaScript. As the article says you can't implicitly convert a symbol's description

Symbols are odd. Maybe it's just me but they feel like they work "funny" in JavaScript. As the article says you can't implicitly convert a symbol's description to string. Symbol is now the only native object in JavaScript that has this behavior. var str = "something" + "str"; // Works var num = "something" + 5; // Works var func = "something" + function () { }; // Works var obj = "something" + { some: "test" }; // Works var bool = "something" + true; // Works var dt = "something" + Date.now(); // Works var und = "something" + undefined; // Works var nul = "something" + null; // Works var nan = "something" + NaN; // Works var sym = "something" + Symbol("test"); // Throws TypeError Another thing, which is more of a style thing in my opinion, is you can actually define a property with a Symbol which just seems awkward to me. I mean sure you can use it as a property by design so why wouldn't you be able to use defineProperty? I always felt those should be public types of properties where you can add additional logic where necessary. var obj = { }; Object.defineProperty(obj, Symbol("MyProp"), { get: function () { return 15; } }); I feel like almost the same thing with Symbol could be accomplished with a simple UUID generator. It's a neat little thing it just feels awkward to me with how JavaScript works.