![]() The way you create Vue Applications and Component Instances has changed (Global API).So you will need to take them into account if you want to start using the new Vue release.Īnd it's worth mentioning the following additional changes: Removed APIs (Things that are no longer available in Vue 3)Īmong all the changes there are some of them that any application will use, like the Global API and components.Minor Changes (These might not affect you, but you'll still want to look into these).Custom Elements (Tells Vue about the creation of custom HTML elements).Render Function (Lets you create HTML elements programmatically).(Changes to how components work) - if your application uses components it's highly likely that you want to look at these changes (Changes made to how v- directives work) - it's highly likely that you want to look at these changes. (responsible for how Vue behaves) - it's highly likely that you want to look at these changes. In Vue 3 the breaking changes basically fall into seven categories: Let's see how these changes will affect our application and consider them before migrating. ![]() Vue 3 introduces a few new features and a bunch of breaking changes. Here you can find the final repository for the project. Watching the video will help you reinforce your learning while reading the steps below. Here's the video version of this article if you want to follow along there: And finally, we will start planning the migration of a real project. First, we will have a look at the changes in Vue.js v3.x then a quick overview of Vue Router v4.x. This tutorial is organised into three main chapters. You can also find the playlist with the full 8 hour course available for free on my YouTube channel. then I suggest you start by checking out my book available on freeCodeCamp. To follow along you need a basic knowledge of Vue.js and Vue Router. What you need to follow along with this article In that project we used Vue Router, so we will also look at Vue router's changes in this article. I'm taking the project from the book I wrote for freeCodeCamp, which you can find here. But before you can migrate a project to Vue 3 there are changes you need to take into account.ĭepending on the size of the project you want to migrate, make sure to consider all the changes introduced with the new release so that your application will still work after the migration.įor this tutorial, I'll keep things simple and show you how to migrate a Vue.js project that currently uses the Vue 2 CDN. If you already know Vue 2, the basics are quite the same. Also, popular libraries like Vue Router have been updated to support the new Vue version. The new Vue.js version does come with quite a few breaking changes and new features. The more complex your project is, the more carefully you'll want to plan for the migration. The project that we will use is intentionally simple, and so anyone can follow along. We will take a simple project and migrate it to Vue 3. In this guide, I'll walk you through the basic steps you will need to follow to approach the migration. ![]() Because of this it's a good idea to know the steps you'll need to take to migrate your projects. You don't have to migrate all your projects over, but as time goes by, support for version 2 might end. New features can give you the opportunity to do things that were tedious before. And often with any major release, your workflow is enhanced. At each release, bugs are fixed and new features introduced. Why should I migrate to Vue3?Īs the tech industry evolves, so do libraries, languages, and frameworks. The new Vue.js release introduces some cool new features but also some breaking changes. In September 2020, Vue 3 core was released. It's one of the most powerful and easy to learn frameworks, and it has over 9.5 million downloads per month. Vue.js is a progressive JavaScript frontend framework written by Evan You.
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