What is Vue JS?

May 12, 2023

What is Vue JS

VueJS, commonly called Vue, is an open-source JavaScript framework developers use to build interactive web interfaces. It’s known for making web development a whole lot easier and simpler.

Vue.js mainly focuses on the view layer of the application, which means it helps you handle how things look and feel for the users. The best part is that you can easily integrate Vue.js into big projects without running into any problems.

They even call it a “progressive” framework because it allows for incremental adoption, so you can gradually introduce it into your existing projects without any major headaches. So, if you’re working on a big front-end development project, Vue.js can seamlessly integrate into it and make your life a whole lot easier.

A Brief History of Vue.js

If you use Vue.js, you may be curious about its history.

It started with Evan You, a former employee at Google, back in 2014. Evan had experience working with another popular JavaScript framework called AngularJS, but he felt that it needed to be simplified and made more accessible to certain developers. So, he set out to create Vue, a framework that would be lightweight, easy to learn, and adaptable.

The first version of Vue was released in February 2014 and quickly gained traction among developers. They appreciated its simple syntax, clear documentation, and overall user-friendliness. As time went on, Vue continued to grow in popularity and became one of the leading front-end frameworks alongside React and Angular.

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What Is Vue.js Used For?

Vue is a JavaScript framework that is primarily used for UI development of websites and single-page applications (SPAs). Its progressive design makes it easier and more enjoyable to create user interfaces.

Vue’s main feature is its ability to connect the Document Object Model (DOM) to the view instance, which creates the Model-View-ViewModel (MVVM) architecture. This enables the development of interactive web pages and Single Page Applications (SPAs) that perform complex operations without reloading the browser.

With the DOM and MVVM connected, particular sections of a web page can be rendered and updated without affecting the entire page. This makes it possible to create interactive elements, like real-time chats that update with new messages or advanced animated Graphical User Interfaces (GUIs) that work entirely within a web browser.

Additionally, integrating Vue’s core library with other libraries and existing projects is straightforward, and its focus on the view layer only makes it easy to learn. Whether you’re a beginner or have background knowledge of Javascript frameworks, Vue can help you create dynamic web interfaces without too much trouble at all!

Features Available with Vue.js

Developers maximize vue features to create amazing single-page applications (SPAs) and user interfaces.

Vue offers the following built-in features to make coding easier and faster:

Virtual DOM

VueJS, like other frameworks, utilizes virtual DOM to optimize changes made to the user interface. Rather than directly altering the DOM, a JavaScript replica of the DOM is created, and changes are made to this structure before being compared to the original. This process is less expensive and allows for faster updates to be made to the user interface.

Data binding

With Vue, the data binding feature enables the manipulation and assignment of values to HTML attributes, as well as the ability to change styles and assign classes. This is accomplished using the v-bind directive, which is available within VueJS.


Vue has a significant feature called components that enable the creation of custom elements that can be reused in HTML.

Vue router

One of the built-in features of Vue is the Vue router. This allows developers to navigate between pages with ease.


VueJS provides several built-in directives, like v-if, v-else, v-show, v-on, v-bind, and v-model, that enable performing different actions on the front end.

HTML-based templates

Vue offers HTML templates that connect the DOM with the Vue instance data, and these templates are compiled into virtual DOM render functions. To use the render function’s template, the user must substitute the template with the render function.

the goal of vue quote

The Pros of Using Vue.js

Vue has several advantages over other Javascript frameworks. If you’re planning to use Vue for your project, here are some of the benefits you’ll get:

Easy to learn and use

The goal of Vue is to make developers’ lives easier by writing fewer lines of code and still getting awesome results. And you know what? You don’t have to be a coding genius to understand it!

All you need is some basic knowledge of HTML, CSS, and JavaScript. Plus, even popular code editors like Atom and Sublime Text have got your back with Vue support, so using this framework becomes a breeze.

Lightweight and performance-optimized

Vue is designed to be lightweight, which means it doesn’t impose unnecessary overhead on your application. At just 21 KBs package size, it takes less time to download than a blink of an eye.

Vue JS also prioritizes performance optimization, enabling fast rendering and efficient updates, resulting in smooth user experiences.

Active and collaborative community

The online VueJS community is simply amazing when it comes to providing help and support. Since Vue is not backed by a giant company like Facebook or Google and has a crowdfunding model, it has garnered a dedicated following of enthusiasts.

You can find numerous helpful guides and active Reddit and Discord channels. You can count on finding a Helpful Harry or two who can competently answer your questions and assist you on your Vue JS journey.

Wide official libraries

Once you’ve set up the basics in Vue, you’ll likely want additional functionality, which is where the framework’s official libraries come in. Your primary concerns will likely be routing and state management.

Routing directs HTTP requests to the appropriate code that handles them, while state management involves controlling UI components like text fields and buttons from one state to another.

For routing and state management, Vue Router and Vuex are the go-to libraries for Vue, respectively.

Virtual DOM performance and rendering

Vue utilizes interesting components, such as virtual DOM, to enhance performance and rendering. When using declarative rendering, the DOM comes into play, representing the HTML pages as a tree structure of objects that store styles, content, and system elements. During page loading, the browser generates and updates these objects to reflect changes made by the developer.

However, updating the entire DOM can be cumbersome. To address this, Vue.js employs a virtual DOM, which is a copy of the original DOM. This allows for efficient changes to be made without rendering the entire DOM, reducing the number of manipulations required by Vue. This leads to faster mobile app development, improved performance, and quicker DOM operations.

Two-way data binding

Vue JS adopted the two-way data binding feature from its predecessor, Angular. This functionality establishes a link between the model data updates and the user interface view, simplifying the process of updating related components and tracking data changes.

VueJS automatically updates the bound data as the corresponding DOM objects change in real-time. This reactivity feature streamlines the data updating process, making it more concise and significantly easier to manage.

For your next Javascript project, give Vue a try, and you won’t regret it. With its ease of use, lightweight structure, active community, and an impressive array of features, Vue.js can meet all your development needs.

The Cons of Using Vue.js

Vue.js does have some limitations, depending on the complexity of your project. To know if it’s the right fit for you, here are some possible drawbacks to consider:

Language barrier

It’s not widely known, but Vue was originally developed by Chinese developers and has gained immense popularity in China. As a result, forum discussions, plugin descriptions, and other instructional resources are often available primarily in Chinese. This language difference can occasionally create a language barrier and require translations to navigate and utilize these resources for building user interfaces effectively.

Lack of significant funding

Since Vue is community-funded and developed without major backing, it may lack sufficient support for seamless adaptation to large-scale projects. The technology might not be as stable or strongly supported as other frameworks like React or Angular, which are backed by big companies that can provide immediate fixes for issues.

Furthermore, while Vue sees the development of more tools, it still has ways to catch up with the extensive array of tools available for React and Angular. However, this doesn’t imply that Vue JS won’t eventually bridge that gap and expand its tooling options.

Less experienced developers

Due to its relatively shorter time in the market compared to its competitors, Vue took some time to establish itself and gain widespread acceptance among programmers. However, despite its growing popularity, there are still some concerns in the market. One notable concern is the scarcity of inexperienced Vue coding experts, which can make it less appealing for developers to utilize Vue JS in their projects.

a vue developer

How To Hire the Right Vue.js Developer?

Don’t be discouraged by the lack of Vue.js developers. There are still plenty of great coders out there who understand how to work with the framework. When looking for the perfect fit, consider these tips:

Expertise with other JavaScript libraries and frameworks

React and Angular are some of the most popular JavaScript libraries and frameworks, so look for a Vue.js developer who is also familiar with these technologies. This helps ensure a smooth transition and makes it easier to understand design principles across multiple levels.

Experience working on similar projects

Ideally, you should find a developer with experience doing several projects using Vue.js, as this will give them an understanding of the complete development lifecycle and the challenges associated with it.

Up-to-date with the latest Vue versions and trends

Vue releases new features and updates frequently. A great Vue developer will stay on top of the latest developments and be able to use them to create more efficient solutions for you.

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Hire Vue.js Developers at StarTechUP!

When it comes to developing websites and mobile applications, few frameworks can compare to the speed, scalability, and intuitive design of Vue.

At StarTechUP, our talented Vue JS developers have vast experience in creating stunning UIs and web applications. We understand the ins and outs of Vue, enabling us to help you get the most out of this powerful framework.

Whether you’re looking for a full-time developer or just someone to handle a project, our team is here to help.

Contact us today and get started on your Vue.js project! We look forward to hearing from you.

About the author: Andrea Jacinto - Content Writer

A content writer with a strong SEO background, Andrea has been working with digital marketers from different fields to create optimized articles which are informative, digestible, and fun to read. Now, she's writing for StarTechUP to deliver the latest developments in tech to readers around the world. View on Linkedin