node-dijkstra symbols, one at a time

const Graph = require('node-dijkstra'); const A = Symbol('A'); const B = Symbol('B'); const C = Symbol('C'); const route = new Graph(); const a = new Map(); a.set(B, 1); a.set(C, 2); route.addNode(A, a); const b = new Map(); b.set(A, 2); route.addNode(B, b); route.path(A, B);