Added JS standard

Graphs/NodeNeighbors.js

@@ -1,12 +1,12 @@
 // https://en.wikipedia.org/wiki/Neighbourhood_(graph_theory)
 
-class Graph{
+class Graph {
   // Generic graph: the algorithm works regardless of direction or weight
-  constructor(){
+  constructor () {
     this.edges = []
   }
 
-  addEdge(node1, node2){
+  addEdge (node1, node2) {
     // Adding edges to the graph
     this.edges.push({
       node1,
@@ -14,16 +14,15 @@ class Graph{
     })
   }
 
-  nodeNeighbors(node){
+  nodeNeighbors (node) {
     // Returns an array with all of the node neighbors
-    let neighbors = []
+    const neighbors = []
     for (let i = 0; i < this.edges.length; i++) {
       // Checks if they have an edge between them and if the neighbor is not
       // already in the neighbors array
       if (this.edges[i].node1 === node && !(neighbors.includes(this.edges[i].node2))) {
         neighbors.push(this.edges[i].node2)
-      }
-      else if (this.edges[i].node2 === node && !(neighbors.includes(this.edges[i].node1))) {
+      } else if (this.edges[i].node2 === node && !(neighbors.includes(this.edges[i].node1))) {
         neighbors.push(this.edges[i].node1)
       }
     }
@@ -32,7 +31,7 @@ class Graph{
 }
 
 (() => {
-  let graph = new Graph()
+  const graph = new Graph()
   graph.addEdge(1, 2)
   graph.addEdge(2, 3)
   graph.addEdge(3, 5)