How to Add Google Analytics Tracking to Site with JavaScript

How to Add Google Analytics Tracking to Site with JavaScript

Either way, we recommend that you add Google Analytics to your website, so you can keep track of all your event data.

The analytics.js library (also known as "the Google Analytics tag") is a JavaScript library for measuring how users interact with your website. This document explains how to add the Google Analytics tag to your site.

The Google Analytics tag

The Google Analytics tag should be added near the top of the `` tag and before any other script or CSS tags, and the string 'GA_MEASUREMENT_ID' should be replaced with the property ID (also called the "measurement ID") of the Google Analytics property you wish to work with.

<!-- Google Analytics -->
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

ga('create', 'UA-XXXXX-Y', 'auto');
ga('send', 'pageview');
</script>
<!-- End Google Analytics -->

The above code does four main things:

  1. Creates a `` element that starts asynchronously downloading the analytics.js JavaScript library from https://www.google-analytics.com/analytics.js
  2. Initializes a global ga function (called the ga() command queue) that allows you to schedule commands to be run once the analytics.js library is loaded and ready to go.
  3. Adds a command to the ga() command queue to create a new tracker object for the property specified via the 'GA_MEASUREMENT_ID' parameter.
  4. Adds another command to the ga() command queue to send a pageview to Google Analytics for the current page.

Custom implementations may require modifying the last two lines of the Google Analytics tag (the create and send commands) or adding additional code to capture more interactions. However, you should not change the code that loads the analytics.js library or initializes the ga() command queue function.

Alternative async tag

While the Google Analytics tag described above ensures the script will be loaded and executed asynchronously on all browsers, it has the disadvantage of not allowing modern browsers to preload the script.

The alternative async tag below adds support for preloading, which will provide a small performance boost on modern browsers, but can degrade to synchronous loading and execution on IE 9 and older mobile browsers that do not recognize the async script attribute. Only use this tag configuration if your visitors primarily use modern browsers to access your site.

<!-- Google Analytics -->
<script>
window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
ga('create', 'UA-XXXXX-Y', 'auto');
ga('send', 'pageview');
</script>
<script async src='https://www.google-analytics.com/analytics.js'></script>
<!-- End Google Analytics -->
What data does the Google Analytics tag capture?

When you add either of these tags to your website, you send a pageview for each page your users visit. Google Analytics processes this data and can infer a great deal of information including:

  • The total time a user spends on your site.
  • The time a user spends on each page and in what order those pages were visited.
  • What internal links were clicked (based on the URL of the next pageview).

In addition: The IP address, user agent string, and initial page inspection that analytics.js performs when creating a new tracker object is used to determine things like:

  • The geographic location of the user.
  • What browser and operating system are being used.
  • Screen size and whether Flash or Java is installed.
  • The referring site.
Next steps

For basic reporting needs, the data collected via the Google Analytics tag can suffice, but in many cases there are additional questions you want answered about your users.

The guides on this site explain how to measure the interactions you care about with analytics.js, but before implementing a particular feature, it's highly recommended that you read the guides listed under the Fundamentals section in the left-side navigation. These guides will give you a high-level overview of the analytics.js library and help you better understand the code examples used throughout the site.

Thank for reading !

JavaScript Tutorial: if-else Statement in JavaScript

JavaScript Tutorial: if-else Statement in JavaScript

This JavaScript tutorial is a step by step guide on JavaScript If Else Statements. Learn how to use If Else in javascript and also JavaScript If Else Statements. if-else Statement in JavaScript. JavaScript's conditional statements: if; if-else; nested-if; if-else-if. These statements allow you to control the flow of your program's execution based upon conditions known only during run time.

Decision Making in programming is similar to decision making in real life. In programming also we face some situations where we want a certain block of code to be executed when some condition is fulfilled.
A programming language uses control statements to control the flow of execution of the program based on certain conditions. These are used to cause the flow of execution to advance and branch based on changes to the state of a program.

JavaScript’s conditional statements:

  • if
  • if-else
  • nested-if
  • if-else-if

These statements allow you to control the flow of your program’s execution based upon conditions known only during run time.

  • if: if statement is the most simple decision making statement. It is used to decide whether a certain statement or block of statements will be executed or not i.e if a certain condition is true then a block of statement is executed otherwise not.
    Syntax:
if(condition) 
{
   // Statements to execute if
   // condition is true
}

Here, condition after evaluation will be either true or false. if statement accepts boolean values – if the value is true then it will execute the block of statements under it.
If we do not provide the curly braces ‘{‘ and ‘}’ after if( condition ) then by default if statement will consider the immediate one statement to be inside its block. For example,

if(condition)
   statement1;
   statement2;

// Here if the condition is true, if block 
// will consider only statement1 to be inside 
// its block.

Flow chart:

Example:

<script type = "text/javaScript"> 

// JavaScript program to illustrate If statement 

var i = 10; 

if (i > 15) 
document.write("10 is less than 15"); 

// This statement will be executed 
// as if considers one statement by default 
document.write("I am Not in if"); 

< /script> 

Output:

I am Not in if
  • if-else: The if statement alone tells us that if a condition is true it will execute a block of statements and if the condition is false it won’t. But what if we want to do something else if the condition is false. Here comes the else statement. We can use the else statement with if statement to execute a block of code when the condition is false.
    Syntax:
if (condition)
{
    // Executes this block if
    // condition is true
}
else
{
    // Executes this block if
    // condition is false
}


Example:

<script type = "text/javaScript"> 

// JavaScript program to illustrate If-else statement 

var i = 10; 

if (i < 15) 
document.write("10 is less than 15"); 
else
document.write("I am Not in if"); 

< /script> 

Output:

i is smaller than 15
  • nested-if A nested if is an if statement that is the target of another if or else. Nested if statements means an if statement inside an if statement. Yes, JavaScript allows us to nest if statements within if statements. i.e, we can place an if statement inside another if statement.
    Syntax:
if (condition1) 
{
   // Executes when condition1 is true
   if (condition2) 
   {
      // Executes when condition2 is true
   }
}

Example:

<script type = "text/javaScript"> 

// JavaScript program to illustrate nested-if statement 

var i = 10; 

if (i == 10) { 

// First if statement 
if (i < 15) 
	document.write("i is smaller than 15"); 

// Nested - if statement 
// Will only be executed if statement above 
// it is true 
if (i < 12) 
	document.write("i is smaller than 12 too"); 
else
	document.write("i is greater than 15"); 
} 
< /script> 

Output:

i is smaller than 15
i is smaller than 12 too
  • if-else-if ladder Here, a user can decide among multiple options.The if statements are executed from the top down. As soon as one of the conditions controlling the if is true, the statement associated with that if is executed, and the rest of the ladder is bypassed. If none of the conditions is true, then the final else statement will be executed.
if (condition)
    statement;
else if (condition)
    statement;
.
.
else
    statement;


Example:

<script type = "text/javaScript"> 
// JavaScript program to illustrate nested-if statement 

var i = 20; 

if (i == 10) 
document.wrte("i is 10"); 
else if (i == 15) 
document.wrte("i is 15"); 
else if (i == 20) 
document.wrte("i is 20"); 
else
document.wrte("i is not present"); 
< /script> 

Output:

i is 20

Teaching CSS to JavaScripters

Teaching CSS to JavaScripters

Teaching CSS to JavaScripters. Some JavaScript professionals do not know CSS as well as they’d like to. In order to help them, PPK decided to write a book “CDD for JavaScripters”, where he will explain CSS in terms that JavaScripters will understand. But what are those terms? What kind of teaching would JavaScripters expect? Is there a CSS mental model that is different from a JavaScript mental model? Is CSS a programming language? Does that matter for teaching or learning CSS?

But what are those terms? What kind of teaching would JavaScripters expect? Is there a CSS mental model that is different from a JavaScript mental model? Is CSS a programming language? Does that matter for teaching or learning CSS?

PPK will give a brief outline of where he’s standing right now on these questions. The majority of the session will be used for a discussion with the audience. How should he teach CSS? Why is it so hard for some to understand it? What are the least-understood parts of CSS? We hope this discussion will yield valuable feedback.

Traffic Lights Simulator with CSS and JavaScript

Traffic Lights Simulator with CSS and JavaScript

Traffic Lights Simulator with CSS and JavaScript. In this tutorial we're going to build a Traffic Light simulator using CSS and JavaScript.

In this tutorial we're going to build a Traffic Light simulator using CSS and JavaScript.