How to build an interactive sparkline chart in D3?

The article titled 'Building an Interactive Sparkline Graph with D3' explores how to use the D3.js library for data visualization. The author introduces the basics of D3, focusing on interactive sparkline graphs, which are compact representations of data. The text includes detailed code examples that demonstrate how to build a graph step by step. A key part of the article is the discussion on event handling, allowing dynamic user interaction with the graph. Finally, the author encourages experimenting with different data and configurations, making it possible to customize the graph according to individual needs.