In this post, we will see how we can register a component globally in Vue 2 and Vue 3.
In Vue, we can register a component in two ways: Locally and Globally
Global components are one that can be used anywhere in the application, whereas a local component cannot be used anywhere, it can only be used in those components where it is registered using components property in Vue
Let’s register a Global component in both Vue 2 and Vue 3.
Register a Global component in Vue 3
In Vue 3, to register a component globally we will use the app.component() method.
Let’s say we have component <GlobalComponent /> which we need in almost every component in our application.
So to register it globally, we will open main.js file and use the app.component() method.
import { createApp } from 'vue';
import GlobalComponent from './GlobalComponent.vue';
const app = createApp({})
app.component('GlobalComponent', GlobalComponent);Once the component is globally registered in Vue 3 , we can use the template anywhere without importing it a second time in our components.
Register a Global component in Vue 2
In Vue 2, to register a component globally we will use the Vue.component() method.
We have to open the main.js file and import the component using Vue.component() method.
import Vue from 'vue';
import GlobalComponent from './GlobalComponent.vue';
Vue.component('GlobalComponent', GlobalComponent);Now in Vue 2 too, you can just use the template in any other component without importing it again.
Note: Register a component globally, only when it is used almost everywhere in your application.
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How to add common header and footer in vuejs.
How to pass multiple props to a component in Vue
How to pass data from parent component to child using props in Vue
