What behaviors does javascript track?

With the continuous development of the Internet, websites and mobile applications have become increasingly important ways for people to obtain information and interact. In order to better understand user behavior and meet user needs, website and application developers need to count and analyze user behavior data. In this case, JavaScript becomes a very important implementation method to track and record user behavior on websites and applications. This article will detail what behaviors JavaScript tracks and how to implement them.

1. Web browser behavior tracking

JavaScript can help developers track user access behavior in web browsers, such as the pages visited by the user, the time spent on the page, and the number of pages the user visits. sources, etc. The following are some of the most common tracking methods:

1.1 Tracking of page views (PV) and unique visitors (UV)

PV and UV are one of the most basic indicators in website statistics . Developers can combine JavaScript and server-side scripting languages, such as PHP or Python, to implement PV and UV tracking. Generally speaking, JavaScript code is added to the head of the web page, and the number of visits is recorded and counted through server-side scripts.

1.2 Source Tracking

In the current Internet environment, many websites have cross-domain embedded advertisements, analysis codes, etc. Through the referrer attribute of JavaScript, you can easily track the source of the user's access to the web page and implement source statistics. For example:

var refer = document.referrer;

1.3 Tracking of page stay time

Use JavaScript timer to count the time users stay in the browser, for example:

var pageStay = 0;
function setStayTime(){
  pageStay ++;
  setTimeout(setStayTime,1000);//定时器，每秒调用一次
}
setStayTime();

2. User Interactive behavior tracking

JavaScript can not only track the user's browser behavior, but also track the user's interactive behavior, such as mouse clicks, keyboard input, scrolling, etc. The following are some of the most common tracking methods:

2.1 Mouse clicks

Use JavaScript to track the user’s mouse click behavior, for example:

document.onclick = function(e) { 
  var event = e || window.event; 
  var target = event.target || event.srcElement; 
  var x = event.clientX || event.pageX; 
  var y = event.clientY || event.pageY; 
  //将鼠标点击的位置等信息传到服务器，进行统计 
};

2.2 Keyboard input

Use JavaScript to track the user's keyboard input, for example:

document.onkeydown = function(e) {
  e = e || window.event;
  var keycode = e.keyCode || e.which;
  var keyname = String.fromCharCode(keycode);
  //将按键信息传到服务器，进行统计
};

2.3 Scrolling

Use JavaScript to track the scrolling behavior of the user page, for example:

document.onscroll = function(e) { 
  var scrollTop = document.documentElement.scrollTop || document.body.scrollTop; 
  var scrollHeight = document.body.scrollHeight;
  var clientHeight = document.documentElement.clientHeight;
  //将滚动信息传到服务器，进行统计
};

3. Application Behavior Tracking

JavaScript can not only track the behavior of web applications, but also the behavior of mobile applications. The following are some of the most common application behavior tracking methods:

3.1 Application usage time

You can track the time the user uses the application through JavaScript, for example:

var startTime = new Date().getTime();
window.onbeforeunload = function() {
  var endTime = new Date().getTime();
  var usedTime = (endTime - startTime) / 1000;
  //将应用程序使用时间信息传到服务器，进行统计
};

3.2 Application startup time

The time from startup to full loading of the application can be tracked through JavaScript, for example:

var startTime = new Date().getTime();
document.addEventListener('DOMContentLoaded', function() {
  var endTime = new Date().getTime();
  var usedTime = (endTime - startTime) / 1000;
  //将应用程序启动时间信息传到服务器，进行统计
});

3.3 Application usage habits

Can be tracked through JavaScript Track application usage habits, such as which pages users click on in the application, which functions they use, how much content they browse, etc. This needs to be implemented for specific needs in application development.

Summary:

Through the above introduction, we can see that JavaScript plays an important role in web page statistics and application statistics, and can help developers better understand and grasp user behavior. , thereby optimizing and improving the functionality and experience of the website and application. Although there are many tracking methods for JavaScript, you must pay attention to the protection of user privacy when using it, and comply with relevant laws and regulations to avoid unnecessary disputes during the tracking process.

The above is the detailed content of What behaviors does javascript track?. For more information, please follow other related articles on the PHP Chinese website!