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hierarchy-closure

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hierarchy-closure

keep closure of parents and children in hierarchy

1.0.1
Source
npm
Version published
Weekly downloads
543
-21.65%
Maintainers
1
Weekly downloads
 
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hierarchy-closure

Maintain simple hierarchy by adding members in any order.

install

npm install --save hierarchy-closure

use

// create hierarchy
t = Hierarchy.create()
// add single entry B->C
t.add('B', 'C')
// add single entry B->C
t.add('B', 'C')
// add child C->D
t.add('C', 'D')
// add disconnected entry F->G
t.add('F', 'G')
// add parent E->F
t.add('E', 'F')
// add middle D->E
t.add('D', 'E')
// add top A->B
t.add('A', 'B')
// add bottom G->H
t.add('G', 'H')
// add redundant entry (no effect)
t.add('A', 'B')

results

{ add: t.add,
  roots: {A: {B: {C: {D: {E: {F: {G: {H: {}}}}}}}}},
  parents: {
    A: [],
    B: ['A'],
    C: ['B', 'A'],
    D: ['C', 'B', 'A'],
    E: ['D', 'C', 'B', 'A'],
    F: ['E', 'D', 'C', 'B', 'A'],
    G: ['F', 'E', 'D', 'C', 'B', 'A'],
    H: ['G', 'F', 'E', 'D', 'C', 'B', 'A']
  },
  children: {
    A: ['B', 'C', 'D', 'E', 'F', 'G', 'H'],
    B: ['C', 'D', 'E', 'F', 'G', 'H'],
    C: ['D', 'E', 'F', 'G', 'H'],
    D: ['E', 'F', 'G', 'H'],
    E: ['F', 'G', 'H'],
    F: ['G', 'H'],
    G: ['H'],
    H: []
  }
}

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Package last updated on 23 Jul 2018

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