{"version":"1.0","type":"rich","title":"53. D3 Updates All Data","description":"A bar chart demonstrates how D3 updates existing visual elements when the underlying dataset changes. Clicking the text triggers an alert and replaces the original 20 data values with a new array of 20 numbers. The code uses `d3.scaleBand` for the x-axis and `d3.scaleLinear` for the y-axis, initially binding data to SVG `rect` elements via `enter()`. On click, `selectAll('rect').data(dataset)` rebinds the new values, and the `y` and `height` attributes are updated in place without removing or re-adding elements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c0d7d901c34b4b1f988857f4568e1b4c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}