Introduction to D3.js Interactive Data Visualization

D3.js (Data-Driven Documents) is a JavaScript library for manipulating the DOM based on data. It's incredibly powerful for creating interactive data visualizations, charts, and graphs. This blog post provides a basic introduction to D3.js and demonstrates how to create an interactive visualization using D3.js.

This example will create a simple bar chart using D3.js. The chart will display the number of users in different countries.

You can find more information and examples on the D3.js website.