completejavascript
diff --git a/‎public/index.html
Lines changed: 44 additions & 24 deletions b/‎public/index.html
Lines changed: 44 additions & 24 deletions
@@ -1,19 +1,24 @@
 <!DOCTYPE html>
 <html lang="en">
-
-<head>
-  <meta charset="utf-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
-  <meta name="theme-color" content="#000000">
-  <meta name="description" content="A basic Calculator with five functions for addition, subtraction, division, multiplication and modulo operation">
-  <meta name="keywords" content="calculator, create-react-app, react-js">
-  <!--
+  <head>
+    <meta charset="utf-8" />
+    <meta
+      name="viewport"
+      content="width=device-width, initial-scale=1, shrink-to-fit=no"
+    />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="A basic Calculator with five functions for addition, subtraction, division, multiplication and modulo operation"
+    />
+    <meta name="keywords" content="calculator, create-react-app, react-js" />
+    <!--
       manifest.json provides metadata used when your web app is added to the
       homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
     -->
-  <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
-  <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
-  <!--
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico" />
+    <!--
       Notice the use of %PUBLIC_URL% in the tags above.
       It will be replaced with the URL of the `public` folder during the build.
       Only files inside the `public` folder can be referenced from the HTML.
@@ -22,18 +27,34 @@
       work correctly both with client-side routing and a non-root public URL.
       Learn how to configure a non-root public URL by running `npm run build`.
     -->
-  <title>Calculator by Lam Pham</title>
+    <title>Calculator by Lam Pham</title>
+
+    <link
+      rel="stylesheet"
+      href="https://use.fontawesome.com/releases/v5.2.0/css/all.css"
+      integrity="sha384-hWVjflwFxL6sNzntih27bfxkr27PmbbK/iSvJ+a4+0owXq79v+lsFkW54bOGbiDQ"
+      crossorigin="anonymous"
+    />
 
-  <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.2.0/css/all.css" integrity="sha384-hWVjflwFxL6sNzntih27bfxkr27PmbbK/iSvJ+a4+0owXq79v+lsFkW54bOGbiDQ"
-    crossorigin="anonymous">
-</head>
+    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <script
+      async
+      src="https://www.googletagmanager.com/gtag/js?id=UA-96543695-6"
+    ></script>
+    <script>
+      window.dataLayer = window.dataLayer || [];
+      function gtag() {
+        dataLayer.push(arguments);
+      }
+      gtag("js", new Date());
+      gtag("config", "UA-96543695-6");
+    </script>
+  </head>
 
-<body>
-  <noscript>
-    You need to enable JavaScript to run this app.
-  </noscript>
-  <div id="root"></div>
-  <!--
+  <body>
+    <noscript> You need to enable JavaScript to run this app. </noscript>
+    <div id="root"></div>
+    <!--
       This HTML file is a template.
       If you open it directly in the browser, you will see an empty page.
 
@@ -43,6 +64,5 @@
       To begin the development, run `npm start` or `yarn start`.
       To create a production bundle, use `npm run build` or `yarn build`.
     -->
-</body>
-
-</html>
+  </body>
+</html>