d at domenic.me (2015-07-07T01:42:22.666Z)
On 6/17/15 2:35 PM, Mark S. Miller wrote:
> What do other browsers currently do?
Firefox:
```
> var w = new WeakMap(); var r = Symbol.for('foo'); w.set(r, true);
TypeError: r is not a non-null object
```
WebKit nightly:
```
> var w = new WeakMap(); var r = Symbol.for('foo'); w.set(r, true);
TypeError: Attempted to set a non-object key in a WeakMap
```
Don't have a new enough IE to test with offhand.
On 6/17/15 2:35 PM, Mark S. Miller wrote: > What do other browsers currently do? Firefox: > var w = new WeakMap(); var r = Symbol.for('foo'); w.set(r, true); TypeError: r is not a non-null object WebKit nightly: > var w = new WeakMap(); var r = Symbol.for('foo'); w.set(r, true); TypeError: Attempted to set a non-object key in a WeakMap Don't have a new enough IE to test with offhand. -Boris