SPA: What Is Single-page Applications All About? All The Details

SPA or Single-Page Applications are web apps that pack a single HTML page which dynamically updates the page as the user interacts with the app.

These apps access via a web browser like other websites. However, it offers more lively interactions that resemble native mobile and desktop apps.

Moreover, SPA uses HTML5 and AJAX to create the fluid and responsive Web apps, without constant page reloads. However, this means more work occurs on the client side or in JavaScript.

In the traditional ASP.NET developer, it can be tough to leap. Fortunately, there are many JavaScript that has open source frameworks which make it easier to create SPAs.

Popular JavaScript Frameworks For Building SPAS

The more interactivity happens on the client-side, the more JavaScript code is needed to make the pieces function well. Hence, the more code is written, the more critical it is to have a clean and well-architected code-base.

However, it is also the problem JavaScript frameworks have to solve. There are a lot of open source JavaScript frameworks that help with building SPAs, such as Vue.js, React, Ember, Aurelia, etc.

In this article, we will discuss React as one of the examples.


Although React is not considered a framework, it pushes itself as a view library.  It was also disruptive when published.

The idea of “Rethinking Best Practices” was attached to it with good reason. Its proposition was very different than the trends the rest of the JavaScript community was moving toward at the time.

Even though most framework creators were focusing on applying the MVC pattern to writing apps, React proposed coupling those together. It does it by simplifying the code in the means of composition and other functional paradigms through components.

After some time since the React was released, other popular frameworks, such as Angular and Ember, have moved toward a more component-based architecture. They also applied similar ideas, such as the virtual DOM which is how React involves changes to the view.

Finding the Right Framework

Many online users battles to proves the best framework for building apps. The truth is, each has its strengths and weaknesses. However, one thing in all of them have in common is JavaScript.

In the meantime, it is best for developers to master the JavaScript and its modern ecosystem first. Learn Adopt Node.js for example, Even though it designed for client-side development, it still brings a lot of good stuff to help bundle codes, run lines to avoid common syntax mistakes, run unit tests, etc.

After you have mastered the JavaScript ecosystem and have identified which parts you like the most, pick a framework that fits you the most. In the end, each framework’s goal is the same, building a fantastic app.

Finally, there is no right or wrong answer when choosing a JavaScript framework and tooling of choice. Hence, it’s up to you to figure out what works best in your circumstances.

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