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Whether you’re building single-page applications (SPAs), working as a full-stack developer, or simply embedding web components on a webpage—Vue.js is a no-brainer. But with the release of Vue 3 in September 2020, the question of Vue 2 vs. Vue 3 is a natural one.
Is Vue 3 simply a rewrite of Vue 2 with minor improvements? Or does it come with major changes to transform the day-in-a-life of a Vue developer? And which one should you choose for your Vue development project? Let's find out.
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Vue 2 came out in October 2016, exactly 4 years before Vue 3. Vue 2 quickly became known as a lightweight, simple, and versatile development framework. Developers used it to create responsive and progressive web interfaces that integrated well with other technologies.
Vue 2 is still being used by companies all over the world, owing both to its multiple benefits and the short time for which Vue 3 has been out. With Vue 2 set to reach end-of-life by the end of 2023, the ecosystem has enough time to migrate to Vue 3.
Despite Vue 3 being out for more than two years now, Vue 2 should be preferred over its newer variant if:
In these cases, it makes little sense to learn or migrate to Vue 3 as you aren’t planning to use it on a daily basis.
But, in every other scenario, migrating from Vue 2 to Vue 3 is the ideal choice. Vue 3 brings more powerful and performant code and is more future-proof. Vue 2 is now in maintenance mode and won’t get any new features for the remainder of its life.
Vue 3 was announced as a smaller, faster, and more maintainable alternative to Vue 2. Vue 3 not only brings newer features to the framework but also improves several drawbacks of Vue 2.
In Vue 2, the code is prone to becoming complex and less readable with an increase in size. Vue 3 attempts to solve this and various other issues of Vue 2 while being largely similar in syntax to Vue 2.
If you or your team is beginning work on a new Vue development project, Vue 3 should be your default choice. Not only does it offer superior performance than Vue 2 but it’s also much simpler to understand. Moreover, its basic syntax is similar to that of Vue 2, meaning making the switch is easy.
However, you should assess your current development needs to decide whether staying with Vue 2 makes more sense for your situation. You might want to retain Vue 2 in the following scenarios:
If you plan to keep using Vue 2 beyond 2023, you can even register your interest here to request extended support beyond its end-of-life.
To adequately choose between Vue 2 and Vue 3, learning the exact technical differences between the two doesn’t hurt. Even if you’re not a technical person, these differences will help illustrate the other arguments in this article better.
The major differences between Vue 2 and Vue 3 are shown below:
In Vue 3, however, the Composition API involves declaring methods and then ‘returning’ them so that other parts of your component can access them.
Lifecycle hooks in Vue 3 need to be imported and can then be used inside the setup() method.
This change was implemented to prevent importing unnecessary packages that were never used, as was the practice in Vue 2.
In Vue 3, this is done by adding the ‘context’ object as the second parameter to the setup() method. Then, you can just call ‘emit’ to send the event to the parent component.
Vue 3 uses an in-built portal to achieve the same result. A unique tag called <teleport> is used to enclose any code that needs to be ready for teleporting elsewhere.
The technical differences between Vue 2 and Vue 3 are a separate discussion. Perhaps, the more important question is—which of the improvements brought by Vue 3 are the most transformative?
The following changes brought about the most tangible improvements in Vue 3 vs. Vue 2:
The TL;DR of it is—use Vue 3 unless Vue 2 is absolutely needed.
Vue 3 offers faster, more performant, and more maintainable code than Vue 2 while still being lightweight. The changes brought in by Vue 3 provide significant improvements over Vue 2, especially helping remove several of the drawbacks of Vue 2.
As stated earlier, the only reasons you could have for choosing Vue 2 largely come down to dependencies. If some components of your code aren’t yet compatible with Vue 3 or if migrating to Vue 3 isn’t worth the benefits gained, then you could choose Vue 2.
Vue 3 is a more future-proof framework and is fast becoming the preferred choice of both developers and organizations.
Regardless of your choice between Vue 2 and Vue 3, hiring Vue.js developers is a hurdle you’ll come across sooner or later. Juggling between multiple platforms and pumping thousands into lengthy recruitment cycles is inevitable when vetting countless candidates.
Trio solves all of your hiring concerns and hassles by providing you access to some of the best Vue.js talent at a fraction of conventional hiring costs. Trio developers are highly-skilled, thoroughly vetted, and expertly trained. Plus, all the HR functions are also handled by Trio, offering you additional peace of mind.
Both Vue 2 and Vue 3 are excellent web development frameworks and enjoy strong support from the community. Depending on your unique business case, neither of the two would disappoint you. And for hiring leading Vue developers from around the world, contact Trio today to find out how we can streamline the process for you end-to-end.
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