Christmas Tree

atree is a lightweight JavaScript library for managing and visualizing hierarchical tree data structures in a flexible and efficient way. It offers core abstractions for creating nodes, building parent–child relationships, and traversing trees with utilities for depth, breadth, and custom iteration strategies. Because tree structures are ubiquitous in computing—from file systems and organizational charts to DOM structures and evolutionary taxonomies—atree provides a reusable foundation for representing and interacting with nested data. It separates the logical model from rendering concerns, so you can use it as the data backbone in UI frameworks, graphs, or custom visual components. The library’s API makes it easy to add, remove, or move nodes anywhere in the hierarchy while maintaining consistent references and performance.