Stephen,
For simple AND filters, there's `_.where()`. For robust filtering,
grouping, bisecting, etc, there's crossfilter
(https://github.com/square/crossfilter). Another alternative I've seen is
the underscore mixin _.data (aka
_.query) https://github.com/dvv/underscore-data, which has a pull request
to make it compatible with node, but crossfilter looks much more mature.
On Thursday, February 28, 2013 5:20:48 PM UTC-8, Stephen Bartell wrote:
>
> My goal is to allow a user to specify a filter a la json. And then use the
> filter on incoming json documents. I'm pretty much looking for an
> implementation similar to mongodb's query command. Maybe theres something
> better than the mongo way, I dont know. I just want filters defined in
> json.
>
> For example here is a doc
>
> doc: {
> "num": 1234,
> "name": "foobar"
> }
>
> and here is the query:
>
> query: {"$and": [{"name": "foobar"}, {"num": {"$lt": 2000}}]}
>
> Based on this query, my doc will pass the filter.
>
> Thanks for any help on pointing me in the right direction!
>
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