Let's talk about several methods of querying Vue version

The version of Vue is one of the knowledge points that we must understand when developing Vue applications, because different versions of Vue have different syntax, performance, and functions. But for developers who have just started learning Vue, they may have some doubts about how to query the version of Vue. So this article will introduce several methods to query the Vue version.

Method 1: Query in the console

In the Vue application, we can get the Vue version number through the console. We only need to open the Chrome browser developer tools, switch to the Console tab, and then enter Vue.version in the console to query the currently used Vue version. The specific steps are as follows:

1. Open the Chrome browser and open the Vue application;
2. Click the three dots in the upper right corner and select "More Tools" -> "Developer Tools" , or directly use the shortcut key Ctrl Shift i to open the developer tools;
3. Switch to the Console tab and enter Vue.version;
4. Press Enter in the console to execute the command to get the Vue version Number. For example, the output "2.6.12" is the Vue version number currently in use.

Method 2: Check the package.json file

We can also check the package.json file of the Vue application to query the Vue version number. The package.json file is a json file that stores project meta-information, recording the basic information, dependency information, etc. of the project. In it, you can query the Vue version used by the current Vue application. The specific steps are as follows:

1. Open the folder of the Vue application and find the package.json file;
2. Use a text editor to open the file;
3. Find " "vue" dependency under the "dependencies" attribute, check its version number. For example, "vue": "^2.6.12" means that the current Vue version number is 2.6.12. It should be noted that if the current application is using the development version of Vue, the version number will have the word "-dev" in it.

Method 3: Query from the Vue.js official website

We can also check the Vue version from the Vue official website. The Vue official website provides Vue version history. We can query different versions of Vue by clicking "Docs" -> "Version" -> "vX.X.X". The specific steps are as follows:

1. Open the Vue.js official website: https://vuejs.org/
2. Click the "Docs" button and select the "Version" option
3. In the Version page, select the required Vue version number to get the detailed documentation for that version

Summary

The above are three ways to query the Vue version, we can Query through the console, package.json file or Vue official website. As a developer, being familiar with the Vue version number you use can help us better understand Vue's syntax features, library functions and performance optimization, and develop Vue projects more effectively.

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