Minor code reformatting.

src/Comm.js

 import React from 'react'
 import axios from 'axios'
-import {array} from "prop-types";
 
-const SERVER_ADDR = "http://192.168.1.67:8080/"
-const SERVER_ENDPOINT = ""
+const SERVER_ADDR = "http://192.168.1.67:8080/";
+const SERVER_ENDPOINT = "";
 
 const testGraphData = [{
     name: "WACC Program", children: [{
@@ -16,33 +15,32 @@ const testGraphData = [{
 
 
 export function astMetaToGraphData(astMeta) {
-    let firstNode = astMeta.nodes["0"]
-    let graphData = createGraphNode(firstNode.name, firstNode.value, firstNode.children, astMeta)
+    let firstNode = astMeta.nodes["0"];
+    let graphData = createGraphNode(firstNode.name, firstNode.value, firstNode.children, astMeta);
     return graphData
 }
 
 function createGraphNode(name, value, childrenIDs, astMeta){
-    var children = [];
+    let children = [];
     if(typeof childrenIDs !== "undefined") {
-        for (var i = 0; i < childrenIDs.length; i++) {
-            var childID = childrenIDs[i]
-            var child = astMeta.nodes[childID];
+        for (let i = 0; i < childrenIDs.length; i++) {
+            let childID = childrenIDs[i];
+            let child = astMeta.nodes[childID];
             children.push(createGraphNode(child.name, child.value, child.children, astMeta))
         }
     }
-    let retObj = {
+    // console.log(JSON.stringify(retObj))
+    return {
         name: name,
-        attributes: { value: value },
+        attributes: {value: value},
         children: children
     }
-    // console.log(JSON.stringify(retObj))
-    return retObj
 
 }
 
 export async function sendWaccCode(code) {
     let ADDR = SERVER_ADDR + SERVER_ENDPOINT;
-    var data = {isError: true};
+    let data = {isError: true};
     await axios.post(ADDR, {contents: code}, {headers: {'Content-Type': 'application/json'}})
         .then(res => {
             data = res.data