[cogware]

Check out Plottable (https://github.com/palantir/plottable/). It's an open source library for data viz / charting, written as a layer on D3, and it's developed in Typescript. They have a mostly incomplete Github page here (http://palantir.github.io/plottable/) with a tutorial (http://palantir.github.io/plottable/tutorials/)