jquery determines system jump page

With the popularity of mobile Internet and the emergence of various mobile devices, web design has become more diverse. In order to allow users to have a better experience in different scenarios, we need to optimize web pages differently. One of them is system judgment and jump. In actual projects, we generally use jQuery to implement it.

1. What is jQuery

jQuery is a popular JavaScript library that simplifies the complexity of JavaScript in web development and provides a large number of reusable functions and methods. , reducing the workload of writing repetitive code. jQuery has gradually become the mainstream framework for front-end development due to its convenience and speed.

2. Determine the operating system

Before implementing the jump, we need to first determine the operating system used by the device currently accessing our web page. The following is a simple jQuery code:

function checkOS(){
  var ua = navigator.userAgent;
  if(ua.indexOf("iPhone") > -1|| ua.indexOf("iPad") > -1 ){
    return "ios";
  }else if(ua.indexOf("Android") > -1){
    return "android";
  }else{
    return "other";
  }
}

We can get the browser information of the current device through navigator.userAgent. If the returned information contains a specific string, "iPhone" or "iPad", we can determine that the current device is using the iOS system. If the returned information contains "Android", we can determine that the device uses the Android system. If neither, we assume the device is using a different operating system.

3. Determine the jump link

Through the above operations, we can determine the operating system used by the current access device. The following is to determine the link and implement the corresponding jump:

function checkOS(){
  var ua = navigator.userAgent;
  if(ua.indexOf("iPhone") > -1|| ua.indexOf("iPad") > -1){
    window.location.href = "iOS_url";
  }else if(ua.indexOf("Android") > -1){
    window.location.href = "Android_url";
  }else{
    window.location.href = "other_url";
  }
}

In the above code, use window.location.href to achieve page jump. If the current device is using iOS system, we will jump to "iOS_url", if it is Android system, we will jump to "Android_url", if not, we will jump to "other_url".

We have already implemented the functions of determining the operating system and jump links. Next, we can encapsulate the judgment code and jump code into a function to facilitate future calls.

function osRedirect(){
  var ua = navigator.userAgent;
  if(ua.indexOf("iPhone") > -1|| ua.indexOf("iPad") > -1){
    window.location.href = "iOS_url";
  }else if(ua.indexOf("Android") > -1){
    window.location.href = "Android_url";
  }else{
    window.location.href = "other_url";
  }
}

$(function(){
  osRedirect();
});

In the above code, we encapsulate the osRedirect function, and then call this function after the page is loaded to achieve automatic jump.

4. Conclusion

Through the above explanation, we have implemented the operating system's judgment and jump functions through jQuery, allowing different devices to have a better page experience. It is worth noting that when making a jump, we must ensure that the client of the corresponding device exists, and the jump link must be correct. I hope this article can help you better use jQuery to realize operating system judgment and page jump.

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