In my opinion it's a bit incoherent that each object-coercible type behaves
differently when coercing symbols to it.
Symbols can be explicitly coerced to strings, but not implicitly:
```js
String(Symbol("abc")); // "Symbol(abc)"
Symbol("abc") + ""; // TypeError
```
Symbols can't be coerced to numbers, neither explicitly nor implicitly:
```js
Number(Symbol("abc")); // TypeError
+Symbol("abc"); // TypeError
```
Symbols can be coerced to booleans, both explicitly and implicitly:
```js
Boolean(Symbol("abc")); // true
!!Symbol("abc"); // true
```
Maybe the `Number` constructor could behave analogous to `String` and return
`NaN` for symbols, instead of calling ToNumber.
_______________________________________________
es-discuss mailing list
es-discuss@mozilla.org
https://mail.mozilla.org/listinfo/es-discuss
