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What does "tree" mean in programming?
tree is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
A hierarchical data structure made of nodes, where each node has a value and references to child nodes. Trees are used for file systems, HTML DOM, binary search trees, and more.
Example
"Traverse the DOM tree to find all elements with the data-testid attribute."
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