Calendar heat map component based on React and D3 inspired by the original calendar heatmap created by Mike Bostock.
The CalendarHeatMap component uses exclusively React for DOM manipulation. From the awesome D3 only the time and scale libraries are used, not the select API for which D3 is so well known. In other words, React does the rendering, and D3 does the computations.
Checkout this sample application
Currently the CalendarHeatMap component cannot be customized too much (work in progress).
If anyone is interested in using it and needs a certain feature, just ask.