Created
June 8, 2016 06:25
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| class Graph { | |
| constructor() { | |
| this._storage = {}; | |
| } | |
| addNode(node) { | |
| this._storage[node] = node; | |
| } | |
| contains(node) { | |
| return !!this._storage[node]; | |
| } | |
| remove(node) { | |
| if (this._storage[node]) { | |
| for (var i = 0; i < this._storage[node].edges.length; i++) { | |
| if (this._storage[node].edges[i] === node){ | |
| delete this._storage[node].edges[i] | |
| } | |
| } | |
| delete this._storage[node] | |
| } | |
| } | |
| addEdge(fromNode, toNode) { | |
| if (this._storage[fromNode] && this._storage[toNode]) { | |
| this._storage[fromNode][edges][toNode] = toNode; | |
| this._storage[toNode][edges][fromNode] = fromNode; | |
| } | |
| } | |
| hasEdge(fromNode, toNode) { | |
| if (this._storage[fromNode][edges][toNode]) { | |
| return !!this._storage[fromNode][edges][toNode]; | |
| } | |
| } | |
| removeEdge(fromNode, toNode) { | |
| if (this._storage[fromNode][edges][toNode] && this._storage[fromNode][edges][toNode]) { | |
| delete this._storage[fromNode][edges][toNode]; | |
| delete this._storage[toNode][edges][fromNode]; | |
| } | |
| } | |
| } |
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