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topological-sort

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topological-sort

Topological sort implemented in Javascript

  • 0.1.2
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  • npm
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Topological sort implemented in Javascript (ES2016)

Build Status DevDependency Status

API

const TopologicalSort = require('topological-sort');

// you can pass nodes as a map into constructor:
const nodes = new Map();
nodes.set('variables', variablesObj);
nodes.set('mixins', mixinsObj);
const sortOp = new TopologicalSort(nodes);

// ...or add them to existing object instance with addNode() or addNodes():
sortOp.addNode('block', blocksObj);
sortOp.addNodes(new Map([
    ['block_mod_val1', blockModObj1],
    ['block_mod_val2', blockModObj2]
]));

// then you should add adges between nodes
sortOp.addEdge('variables', 'mixins'); // from, to
sortOp.addEdge('mixins', 'block');
sortOp.addEdge('variables', 'block');
sortOp.addEdge('block', 'block_mod_val2');
sortOp.addEdge('block', 'block_mod_val1');

// sorting is simple: it returns a new map wih sorted elements
// if circular dependency is found, sort() operation throws an AssertionError
const sorted = sortOp.sort();
const sortedKeys = [...res.keys()]; // ['variables', 'mixins', 'block', 'block_mod_val1', 'block_mod_val2']

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Package last updated on 18 Jul 2016

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