How to check whether the code uses vue (a brief analysis of the method)

With the continuous development of front-end technology, more and more JS frameworks and libraries have been developed. Vue.js has gradually become one of the popular frameworks in the front-end field due to its efficiency, simplicity and ease of use. If you want to determine whether a website is developed with Vue.js, then today I will share with you how to check whether the code uses Vue.

1. View the page source code

The easiest way is to view the page source code of the website. You can call up the developer tools by pressing the F12 key, select the "Elements" panel, and then use Ctrl F to search for "Vue" in the body tag of the page or drag the page with the mouse to search for the keyword "Vue". If this website uses Vue.js, then it will usually be seen in a meta tag in the HTML code. Vue.js is usually declared in the page metadata (metadata), for example:

<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="keywords" content="vue.js, Vue">
<meta name="description" content="Vue.js 是一套构建用户界面的渐进式框架。">

2. View through the browser console

By using the developer tools, you can check whether the element Managed by a Vue instance, see which components are activated as you move around the application, and more. If the website uses Vue.js, relevant prompt information will be output in the browser console, for example:

The Vue Devtools plug-in can be used for Chrome and Firefox browsers. Allows you to better debug and analyze Vue.js applications. Just install the plug-in, open the plug-in panel, and you can see the instance information of a website built with Vue.js on the panel, including various components, routing, data, events, etc.

3. Check the package.json file

Vue.js uses npm (Node.js package management tool) for installation and management, so you can know whether the website is by checking the package.json file of the website. Vue.js is used. If you don't know how to view the package.json file of a website, you can do the following:

1. Search for the package.json file in the root directory of the website.
2. Open the package.json file.
3. Find whether Vue.js exists in the project name or dependencies, for example:

"dependencies": {
    "vue": "^3.0.0"
}

If the website uses Vue.js, then it can be found in the package.json file in the project See the dependencies of the corresponding version number.

Summary:

The above is our brief introduction on how to determine whether a website uses Vue.js. I believe it can help everyone. Of course, when actually checking whether a website uses Vue.js, it is best to combine multiple methods to ensure accuracy. If you have other good methods, please share them.

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