This bar chart displays average salaries by job title, with a tooltip showing the exact salary on hover. The visualization uses D3 v6 to fetch a CSV file from a GitHub repository, parse the data, and render an SVG with scaled bars and axes. The code leverages `d3.scaleBand`, `d3.scaleLinear`, `d3.axisBottom`, and `d3.axisLeft`, with mouseover events that change bar color and reveal a tooltip displaying the job title and salary. The chart includes rotated x-axis labels and axis titles for clarity.