Dmitry zerobias

## .d3v4-selectable-force-directed-graph
.

## Graph.js
module.exports = class Graph {

    constructor(V, E, directed = false) {
        this.vertices = V;
        this.edges = {};

        E.map(e => {
            const a = e[0]; const b = e[1]; const w = e[2] === undefined ? 1 : e[2];

            this.addEdge(a, b, w);
	module.exports = class Graph {

	constructor(V, E, directed = false) {
	this.vertices = V;
	this.edges = {};

	E.map(e => {
	const a = e[0]; const b = e[1]; const w = e[2] === undefined ? 1 : e[2];

	this.addEdge(a, b, w);