code improvement

background.js

@@ -1,25 +1,25 @@
 // Run script each time Chrome extension icon clicked
-document.addEventListener("DOMContentLoaded", function() {
-  chrome.tabs.query({ active: true, currentWindow: true }, function(tabs) {
+document.addEventListener("DOMContentLoaded", () => {
+  chrome.tabs.query({ active: true, currentWindow: true }, tabs => {
     var activeTab = tabs[0];
     chrome.tabs.sendMessage(activeTab.id, {
       message: "FETCH_IMAGE"
     });
   });
 });
 
-chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
+chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
   if (request.message === "SHOW_RESULTS") {
-    const status = request.results.status;
+    const status = request.results.imageSource.length;
     const app = document.querySelector(".ebay-klein__result");
     const noImageMsg = document.querySelector(".ebay-klein__no-image");
 
     status ? (noImageMsg.style.display = "none") : null;
 
-    app.innerHTML = status
-      ? request.results.imageSource.map(
-          img => `<a href="${img}" target="_blank"><img src="${img}"/></a>`
-        )
-      : null;
+    if (status) {
+      app.innerHTML = request.results.imageSource
+        .map(img => `<a href="${img}" target="_blank"><img src="${img}"/></a>`)
+        .join(" ");
+    }
   }
 });

content.js

@@ -1,4 +1,4 @@
-chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
+chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
   if (request.message === "FETCH_IMAGE") {
     // Extract images from product page or gallery
     const imageContainer =
@@ -9,11 +9,11 @@ chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
     const imageSource =
       imageArray.length && imageArray.map(src => src.getAttribute("src"));
 
+    console.log(imageSource[0]);
     // Listener
     chrome.runtime.sendMessage({
       message: "SHOW_RESULTS",
       results: {
-        status: imageSource ? true : false,
         imageSource: imageSource
       }
     });

style.css

@@ -45,7 +45,6 @@
   background: rgb(255, 255, 255);
   margin: 8px 0px;
 }
-
 .ebay-klein__main__image {
   background: url("image.svg") no-repeat center center;
   background-size: cover;
@@ -64,6 +63,7 @@
   padding: 5px;
   justify-content: space-evenly;
 }
+
 .ebay-klein__result a {
   margin: 5px;
   width: 45%;