Basic Introduction of VueJS 2 and VueJS 3

• In the realm of front-end development, there's a plethora of leading frameworks such as Angular, React, and Vue.js, each offering its own set of advantages for developers crafting robust web applications. Vue.js stands out as a powerhouse, dedicated to sculpting rich and intuitive user interfaces.
• For newcomers venturing into the world of VueJS, a pressing question often arises: which stable version should one opt for? Vue3 emerges as a stalwart choice, currently dominating the market and embraced globally by countless companies for crafting responsive web applications.
• The arrival of Vue3 has ignited a wave of curiosity among developers eager to explore the technical advancements introduced in the latest iteration of Vue. Boasting a host of innovative features, Vue3 promises to turbocharge your applications, leveraging cutting-edge concepts to enhance speed and responsiveness.

Key Takeaways

• Composition API: Vue 3 introduces the Composition API, a paradigm shift from Vue 2's Options API, offering more flexibility and scalability in organizing and reusing code logic.
• Performance Enhancements: Vue 3 is engineered with performance in mind, featuring a reactivity system rewrite that significantly boosts rendering efficiency, resulting in faster and more responsive applications compared to Vue
• Tree Shaking and Bundle Size Reduction: With Vue 3's improved module structure and better optimization, developers can leverage tree shaking techniques more effectively, leading to smaller bundle sizes and improved load times compared to Vue 2.
• Teleport Component: Vue 3 introduces the Teleport component, allowing developers to seamlessly render content at a different location in the DOM hierarchy, enabling smoother transitions and enhanced flexibility in building complex UIs.
• Composition API vs. Options API: While Vue 2 relies on the Options API for structuring components, Vue 3's Composition API offers a more intuitive and powerful approach for managing component logic, making code organization and reuse more straightforward and efficient.
• TypeScript Support: Vue 3 provides enhanced support for TypeScript out of the box, making it easier for developers to leverage the benefits of static typing and catch errors during development, which was less robust in Vue 2.
• Ecosystem Compatibility: While Vue 3 introduces significant improvements, it's essential to consider ecosystem compatibility, as some plugins and libraries may require updates to fully support Vue 3, whereas Vue 2 has a more mature and stable ecosystem.
• Migration Path: Vue 3 offers a clear migration path for projects built on Vue 2, with tools and documentation provided to facilitate a smooth transition, ensuring that existing Vue applications can benefit from the latest features without major disruptions.
• Developer Experience: Vue 3 aims to enhance the developer experience with improved tooling, better error handling, and more comprehensive documentation, striving to make the development process smoother and more enjoyable compared to Vue 2.‍
• Community and Support: While Vue 3 is gaining momentum, Vue 2 boasts a large and active community with extensive resources and support available, making it a reliable choice for projects requiring stability and long-term maintenance.

History of Vue.JS Framework

To comprehend the disparities between Vue 2 and Vue 3, it's essential to trace the framework's evolution. Vue.js embarked on its journey as a modest runtime library, gradually transitioning into a full-fledged framework over time. Today, Vue.js has earned recognition as an accessible, high-performing, and adaptable framework, pivotal in the development of dynamic web user interfaces.

Definition: Vue.js 2

Vue.js 2 is a prevalent JavaScript framework utilized extensively in crafting user interfaces. Recognized for its simplicity and adaptability, it empowers web developers to construct interactive web applications with ease. Vue.js 2 operates on a reactive and component-based architecture, facilitating the segmentation of the application's UI into reusable components for enhanced modularity and scalability.

Definition: Vue.js 3

Vue.js 3 stands as the latest iteration of the Vue.js JavaScript framework, meticulously crafted for the development of modern and high-performing web applications. Distinguished by a host of significant improvements and optimizations over its predecessor, Vue 2, Vue 3 places emphasis on bolstered performance, reduced bundle sizes, and enhanced TypeScript integration. Central to Vue 3 is the Composition API, offering developers a more adaptable and modular approach to organizing code within components, fostering greater code reusability and maintainability.

Moreover, Vue.js 3 enhances the virtual DOM algorithm to streamline rendering and updates, resulting in expedited application performance and smoother user experiences. Despite the advancements of Vue 3, Vue 2 continues to be utilized by numerous companies worldwide, attributed to its distinct advantages and the relatively recent emergence of Vue 3, with Vue 2 slated to remain supported until the end of 2023.

Differences Between Vue2 and Vue3

Creating An Application

The initial disparity between Vue 2 and Vue 3 arises during the process of creating an application from scratch. To kickstart the standard application setup, including the installation of Vue CLI (Command Line Interface), developers must follow specific procedures.

• To streamline the installation process, execute the following command to install Vue CLI globally: