{"version":"1.0","type":"rich","title":"Template Enter, exit and update","description":"This example demonstrates the fundamental D3 data-join pattern by explicitly separating enter, update, and exit selections for a set of objects. The code initializes an SVG canvas with a color scale and an empty array of objects, then defines a render function that handles the three states, though the specific visual behavior is left as a template exercise. Using d3.scaleOrdinal and d3.range, it sets up the scaffolding for binding data to SVG elements, with placeholder functions for adding and updating objects. The example serves as a workshop template for understanding how D3’s enter, update, and exit selections drive dynamic visualizations.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/aeb3a9177ccb4d7aa14bb86e5d3b3d3e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}