jlongster/transducers.js — pull request #10 by stefanpenner (2014-10-11 15:12:39+00:00)
Title: improve isArray check

* more correct
* when `Array.isArray` is available its a nice performance boost.
* toString approach is unfortunately slower then the instanceof approach

given:

```js
sequence(compose(
cat,
map(square),
filter(odd),
take(20)
), range(0, 1000)
);
```

the improvement in node 0 was from 425,000 op/s to 515,000 op/s +-
```
v8: '3.26.33'
node: '0.11.14'
```