jquery how to hyperlink

jQuery is a widely used Javascript library that can easily achieve dynamic interactive effects. Among them, hyperlinks are also a common interactive effect. This article will introduce how to implement jQuery hyperlinks.

1. Basic hyperlinks

Hyperlink is one of the commonly used elements in HTML and is used to jump between different pages. In HTML, the basic code of a hyperlink is as follows:

<a href="link地址">链接文本</a>

The "link address" here is the link page to jump to, which can be other web pages, pictures, videos, etc.; the "link text" is the hyperlink The link's display text. This basic hyperlink can also be handled using jQuery.

$(document).ready(function(){
  $("a").click(function(){
    alert("链接已被点击");
  });
});

In this code, $(document).ready() is a syntax commonly used in the jQuery framework, indicating that it will be executed after the document is loaded. $("a") means to select all hyperlinks. .click() means to execute the corresponding code when the hyperlink is clicked. The code here simply pops up a prompt box.

2. Prevent default jump

In practical applications, sometimes it is necessary to process the hyperlink before jumping. However, if no processing is performed, once the hyperlink is clicked, the page will jump directly to the specified link address. To prevent this default jump behavior, you can use the following code:

$(document).ready(function(){
  $("a").click(function(event){
    event.preventDefault();
    alert("链接已被点击");
  });
});

In this code, an event parameter is appended for receiving the event object. .preventDefault() prevents the default jump behavior. In this way, when the hyperlink is clicked, it will not jump directly, but will execute the corresponding function in the code.

3. Implement jump

After processing the hyperlink, the jump function needs to be implemented. There are two ways to implement the jump. One is to use the .window.location property to redirect the URL of the current page to the specified link address.

$(document).ready(function(){
  $("a").click(function(event){
    event.preventDefault();
    var linkLocation = this.href;
    window.location = linkLocation;
  });
});

In this code, the this.href attribute is used to obtain the URL to be redirected, and then the window.location attribute is used to redirect to the URL.

The other is to use the .location.href attribute, which is basically the same as .window.location.

$(document).ready(function(){
  $("a").click(function(event){
    event.preventDefault();
    var linkLocation = this.href;
    location.href = linkLocation;
  });
});

Use these two methods to achieve the jump function of hyperlinks.

Summary

When using jQuery to process hyperlinks, you need to pay attention to preventing the default jump behavior and implementing the jump function. You can use the window.location or location.href properties to implement the jump. At the same time, for a large number of hyperlink operations, it is recommended to use a framework-specific jQuery plug-in, such as the officially provided jQueryUI or the commonly used Bootstrap framework.

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