Caffeinating still, obvious bugfix below:
Brendan Eich wrote:
```js
Object.defineProperty(%CollectionPrototype%, 'map', {
value: function (fun) {
let result = new this.constructor();
for (let [key, val] of this) {
result.set(key, val);
```js
result.set(key, fun(val, key));
```
I call the mapfun in these examples with (val, key) -- could use the
e-i-c convention from the Array extras but I was in a hurry (wherefore
this bug).
/be
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