{"version":"1.0","type":"rich","title":"What is general update pettern?","description":"Shows how D3's general update pattern animates a bar chart when a button shuffles the data array, reordering horizontal bars with smooth transitions. The chart uses D3 v5 with `select`, `scaleLinear`, `scaleBand`, `axisLeft`, `axisBottom`, and a join pattern (`selectAll`, `.enter`, `.merge`) to handle enter and update states. A `transition().duration(1000)` animates bar widths and axis recalculation on each shuffle, while a `<g>` container persists across renders. SVG rendering and the `.call` method drive the axes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d0e596fff90e4d1983bfa29ce4861e1b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}