This example visualizes the price per head at Hyderabad restaurants using a bar chart, with an animated entrance and interactive highlighting on mouseover. Built with D3 v4 and SVG, bars transition in sequentially, while hovering enlarges a bar and displays its price in rupees. The code uses `d3.scaleBand`, `d3.scaleLinear`, and `transition` for animation, with event handlers `onMouseOver` and `onMouseOut` to toggle highlighting and show tooltip-like text.