Some clarification on reusable charts

Question

In \'Towards Reusable Charts\', Mike lays out an example time-series chart at the end. In it, he has this line:

// Select the svg element, if it exists.
var          


        

Answer 1

Reusable chart is nothing but the charts should already created we can simply get benefit of the charts.we don't need to spend time to create a charts from scratch.

Credits: Reusabe Charts for d3