How to write to cache with jquery (two methods)

With the development of Internet technology, more and more websites are beginning to use jQuery. jQuery is a convenient JavaScript library for HTML document traversal and manipulation, event handling, animation effects, AJAX, etc. One of the very important features is cache. So, what is cache? Why use cache? In jQuery, how to write to cache? Let’s answer them one by one.

What is cache?

In the computer field, cache is a place where data is quickly and temporarily stored. It can store some pre-computed data for quick reading in subsequent operations. In web development, cache is usually used to store loaded resources, such as images, CSS files, and JavaScript files.

Why use cache?

In website development, loading speed is an important part of user experience. If the page loads too slowly, users may be lost, so we need to optimize the loading speed of the website. In this case, using cache can greatly improve website performance. When we use cache, the browser reads resources from the local cache instead of reloading them from the server. This saves bandwidth and server resources, and reduces page load times.

How to write to cache in jQuery?

jQuery provides many methods to operate cache. Here we introduce the two most commonly used methods.

1. $.ajaxSetup() method

$.ajaxSetup() method can set the attributes of global Ajax requests, including cache attributes. When the cache attribute is set to true, it means that the cache is enabled, and data will be read from the cache when making a request.

For example, the following code will enable cache:

$.ajaxSetup({
    cache: true
});

2. $.ajax() method

$.ajax() method can send Ajax requests, and set request parameters. One of the parameters is cache, which is used to control whether to use cache.

For example, the following code will request the URL and enable the cache:

$.ajax({
    url: "example.com",
    cache: true
});

In addition to the above methods, jQuery also provides some other methods for operating cache, such as $.getScript() and $ .getJSON() and other methods.

Conclusion

In website development, optimizing loading speed is very important. Using cache can greatly improve performance and reduce page load times. jQuery provides many powerful methods to operate cache, we only need to choose the appropriate method according to specific needs.

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