Vue.js Devtools made a huge impact on the Vue.js ecosystem. One of the most significant and unique features is the ability to time travel, which is a shift between states that allows you to debug Vue apps quickly.
This article will guide you through how to use Vue.js Devtools efficiently during the development process.
Vue.js has provided its Devtools in three different formats: a Chrome extension, a Firefox extension, and a standalone application.
Installing the Vue.js standalone version is straightforward. You can install it globally or as a project dependency by using NPM or Yarn.
-- As locally npm install -g @vue/devtools or yarn global add @vue/devtools -- As s project dependency npm install --save-dev @vue/devtools
Then, run the vue-devtools command on the terminal, and the following window will pop up.
Now, we’ll move on to look at five of its best features in-depth and some practical usage.
Navigation to the Components tab provides you a clear view of all the page components on the left, accompanied by the details of the selected component such as props, data, computed, and Vuex bindings on the right.
Since Vue.js Devtools doesn’t allow editing component data by default. It is necessary to enable it from the Settings tab first. Subsequently, you can select the component and edit its data, including strings, Boolean values, numbers, arrays, and data received from API calls in the browser’s Component tab.
Vuex is the state management library in Vue.js. It can easily manage and mutate your application states.
Even though it’s smooth in most of the cases, Vuex also behaves unexpectedly in certain circumstances. In such cases, you can debug the Vuex store easily using Vue.js Devtools, enabling time traveling to prior states.
Drifting through these states, you will come across the Time Travel option, which can escort you through time to a particular state.
We can measure the Frames per second and Component render parameters using the Performance tab in the Vue.js Devtools.
When you allow the app to run and monitor the frames per second, several frames will be loaded each second. You can see three other labels with letters M, E, and R:
Thereby, any mutation, event, or route change that affects your app’s performance can easily be detected using the Performance tab.
The Component render section in the Performance tab provides you with a detailed timing description of each component’s lifecycle. It indicates the duration of creating, mounting, updating, or destroying a component.
You can easily find your components of interest, since the component list is ordered based on the time taken to load.
As the lines of code increase when an application grows, tracking all routes and their connections gets difficult. However, Vue.js Devtools compacts and wraps all the routes and their information into a single file. It allows monitoring the app’s routing actions with the user data.
Vue.js Devtools collects all the emitted events into a single location. The Events tab monitors and tracks all the custom events of your app, including the source component, name, size, and payload of each event.
In a nutshell, we have discussed the methods of installing Vue.js Devtools and some of the features to use to get the best out of it.
We encourage you to be thorough with the facts brought up in this article if you are willing to master Vue.js.
Thank you for reading!
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