In daily front-end development, we often need to use the Vue.js framework to develop complex single-page applications or components. In order to facilitate development and debugging, we need to add Vue.js related debugging tools to the browser. Today we are going to introduce how to add Vue to devtools.
What is devtools
devtools is a browser developer tool that can be embedded into the browser and provides various debugging tools and functions, including debugging JavaScript, CSS, DOM, performance and Web page network requests and so on. We can easily view elements, debug code, view the console, view network requests, modify web page elements, and more.
devtools How to add Vue
First, enter the URL chrome://extensions
in the browser to enter the extension page, and then click ## in the upper right corner #Developer Mode, then click
in the upper left corner to load the decompressed extension to add Vue.
Then we introduce the source files of Vue into the project. You can create a Vue.js project by installing vue-cli, or directly download the source files and reference them into the project. After referencing Vue.js in the project, we can proceed with Vue development.
Open the debugging tool on the page (the shortcut key is F12), click the
Vue tab to see the relevant information. You can see your current Vue version, as well as your application's instances, components, directives, Vuex status, and more.
If you encounter an error when debugging a Vue.js program, you can debug manually by viewing the console, inspecting the Vue instance, etc. You can get an instance of Vue by typing
$vm in the console, and you can also print debugging information by typing
console.log. But using devtools, we can more easily view the component structure and view the status debugging of Vuex.
Advantages of devtools
It is very convenient to use devtools to debug Vue.js programs. It has the following advantages:
View the component structure: You can easily Conveniently view the structure of the component, including the component's name, data, status, Props, events, etc. By looking at the component structure, we can have a good understanding of the relationship and data flow between components, which facilitates development and debugging. - Vuex state debugging: In devtools, we can easily view and debug the state of Vuex. We can view the current state and modify the state through mutations. This is very convenient for us to develop and debug Vuex.
- Vue version management: In devtools, we can view the currently used Vue.js version to ensure that we are using the correct version to avoid problems caused by version mismatch.
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Summary
devtools is a very powerful debugging tool, and adding the Vue plug-in makes it more convenient for us to develop and debug Vue.js programs. By viewing component structure, Vuex status debugging, version management and other functions, we can develop and debug Vue.js programs more conveniently.
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