Tree - Ancestor (Ascendant)

Data System Architecture


An element A is called an ancestor of an element B, if and only if B is a descendant of A.

Ancestors are element (members) in branches above a element (member).

Tree Ancestor

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Data System Architecture
(Tree|Nested Set|Hierarchy) Data Structure

A tree is a node that may have children. Tree's are inherently recursive by definition as each child of a node is a Tree itself, with or without children nodes. A tree is a special case of a graph structure...
CSS - Absolute Positioning (Relative / Absolute / Fixed > Absolute or Static > Absolute )

absolute positioning is a positioning model that occurs when a box has the absolute value as position property. When this is the case, the absolute box is positioned: * from the first ascending box...
CSS - Property

CSS defines a finite set of parameters, called properties, that defines the rendering of a document. Properties are written in a css rule after the element selection definition. Properties are attached...
Card Puncher Data Processing
D3 - Hierarchy

tree operation in D3 are done in the hierarchy module. A tree will be passed to a hierarchical layout such as node.sumnode.countnode.value Nest d3.hierarchy....
DOM - Event Propagation (known as Event Bubbling)

event propagation is a mechanism in which an event is propagated to all its ascendant (ancestore). Any time one of anchor tags is clicked, a click event is fired for that anchor, and then...
Member Relationship
Essbase - Member Relationships

Essbase uses terms to describe the roles and relationships of the members in a database outline. Hierarchical terms description Generation refers to a consolidation level within a dimension. ...
Data System Architecture
Logical Data Modeling - Transitive Relationship Property

transitive is a relationship property that tells that the relationship follows the following rule: when the relation relates a to b and b to c, then the relation relates a to c. In mathematical notation,...
Binary Max Heap
Ordinal Data - Partially Order

A Partially ordered structure is a data structure where not every pair of elements needs to be comparable (compared). A collection of people ordered by genealogical descendancy: Some pairs of...
React Class Component - Shared State (Lifting state up)

To shared a state between two components, the most common operation is to move the variable up to their closest common ancestor. This is called “lifting state up”. (ie removing the local state from...
Data System Architecture
Tree - Operation

on a tree node get path size ... others:

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