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Kkarthikpavan1198@gmail.com
Last edited Apr 12, 2026
Created on Apr 12, 2026
Forked from D3 Starter

A tree diagram displays a three-level programming language hierarchy, from a root node to category nodes for Frontend, Backend, and Data Science, each with leaf-node languages. The visualization uses D3.js v7 to build the SVG layout, with `d3.hierarchy` and `d3.tree` computing positions. Node shapes encode type: rectangles for root, circles for categories, and rotated squares for leaves, all connected by `d3.linkHorizontal` paths.

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