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path-scc
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Find all strongly-connected components in a graph structure. These can be used to identify cycles (= components with more than one node).
const scc = require('scc').scc // or: import {scc} from 'scc'
const nodes = [{ id: 'A' }, { id: 'B' }]
const links = [{ source: 'A', target: 'B' }, { source: 'B', target: 'A' }]
const components = scc(nodes, links)
components == [{ id: 'A' }, { id: 'B' }]
TypeScript type declarations are included.
Source: WikiPedia
The algorithm performs a depth-first search of the given graph G, maintaining as it does two stacks S and P (in addition to the normal call stack for a recursive function). Stack S contains all the vertices that have not yet been assigned to a strongly connected component, in the order in which the depth-first search reaches the vertices. Stack P contains vertices that have not yet been determined to belong to different strongly connected components from each other. It also uses a counter C of the number of vertices reached so far, which it uses to compute the preorder numbers of the vertices.
When the depth-first search reaches a vertex v, the algorithm performs the following steps:
The overall algorithm consists of a loop through the vertices of the graph, calling this recursive search on each vertex that does not yet have a preorder number assigned to it.
FAQs
Find all strongly-connected components in a graph structure.
The npm package path-scc receives a total of 0 weekly downloads. As such, path-scc popularity was classified as not popular.
We found that path-scc demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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