How to solve the problem that the browser does not fully load the jquery.js file

How to solve the problem of incomplete jquery.js introduced by the browser?

With the continuous development of Web development, jQuery, as an excellent JavaScript library, is widely used in front-end development. However, in actual development, sometimes we encounter situations where the browser introduces the jquery.js file but does not load it completely, which may cause the page function to be abnormal or not run properly. So, how should we solve this problem? Specific solutions will be given below from several levels.

1. Use CDN to introduce jQuery files

One way to solve the problem of incomplete browser introduction of jquery.js is to use CDN (Content Delivery Network) to introduce jQuery document. CDN can improve file loading speed, reduce server burden, and has multiple backup servers to avoid file failure due to server downtime.

<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>

The link in the above code uses the jQuery CDN link provided by BootCDN. You can choose other CDN services to introduce jQuery files as needed. Using CDN to introduce jQuery files can not only avoid the problem of incomplete loading, but also improve file loading speed and web page performance.

2. Store jQuery files locally

In addition to using CDN to import jQuery files, we can also download jQuery files locally and import them through relative paths, which ensures File integrity and avoid incomplete loading due to network reasons.

First, you need to download the latest version of jQuery from the [official website](https://jquery.com/download/) and save it in the js folder of the project. Then introduce the local jQuery file into the HTML file:

<script src="js/jquery-3.6.0.min.js"></script>

By storing jQuery files locally, you can avoid the problem of incomplete file loading due to network reasons, and also improve the loading speed of the website.

3. Use the defer or async attribute

You can add the defer or async attribute to the tag that introduces the jQuery file , which can delay the execution of the script and wait until the document parsing is completed before executing the script, avoiding the problem of incomplete script loading. The

<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js" defer></script>

defer attribute ensures that the execution order of the script is consistent with the order of introduction, and the script is executed after the document parsing is completed, thus avoiding the problem of incomplete loading.

4. Check the network connection and server status

Finally, if there is a problem of incomplete loading when introducing the jQuery file, you can first check whether the network connection is normal to ensure that it can Access CDN or local server normally. At the same time, you should also check the server status to avoid the file being unable to be fully loaded due to busy server or downtime.

To sum up, by using CDN to introduce jQuery files, storing jQuery files locally, using defer or async attributes, and checking network connections and server status, we can solve the problem of incomplete jquery.js introduction by the browser. , ensuring the normal operation of web pages and improving user experience. I hope the solutions provided in this article can help developers solve similar problems.

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