
Vue.js
React
ember.js
Backbone.js
ExpressJS
Svelte
Sencha Ext JS
AngularJS lets you extend HTML vocabulary for your application. The resulting environment is extraordinarily expressive, readable, and quick to develop.

Ruby on Rails
ASP.NET
ember.js
Backbone.js
ExpressJS
Derby.js
Sinatra
Opa is an open source, simple and unified platform for writing web applications.

Which is more popular?
Based on our record, AngularJS should be more popular than Opa. It has been mentioned 50 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | angularjs.org | opalang.org |
| Company | 2010 | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
What Is AngularJS
More videos
My food review at Opa of Greece!
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using AngularJS and Opa. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


AngularJS is an open-source framework used for developing web applications. Google developed it and made it open-source in 2010. It is one of the top choices of developers when it comes to building web applications...
Yes, Angular Universal provides server-side rendering capabilities for Angular applications. This tool allows Angular apps to benefit from SSR, improving performance and SEO by rendering pages on the server before...
NestJS is a Node.js framework that’s inspired by Angular, and guess what? It’s written in TypeScript. Building with Typescript is like you’re navigating with the stars. It’s all about sturdy architecture, a...
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Recommendations tracked on public social media and blogs since March 2021.


To maximize learning, I could choose something new. Normally, I consider that a valid reason. But given my limited time, that wasn't a priority for me. Another criterion could be long-term viability: Is there a large core team and an... - Source: dev.to / over 1 year ago
AngularJS is an open-source JavaScript framework that developers use to build frontend applications. It comes with modular support, an extensive community, and all the tools that help develop and manage dynamic frontend web apps. - Source: dev.to / almost 2 years ago
Ok, what we'll use now is something that existed back in the day, after we switched from AngularJS to Angular 2 or modern Angular. We'll use the old/new host property on the component decorator. - Source: dev.to / over 2 years ago
Definitely Opa: http://opalang.org/ In 2011, before TypeScript, Next.js or even React, they had seamless server-client code, in a strongly typed functional language with support for features like JSX-like inline HTML, async/await, string... - Source: Hacker News / about 1 year ago
Opa language 2012, it was a typed nextjs before its time. http://opalang.org/ I think the market was still skeptical about nodejs on the server at the time but other than that I don’t really know why it didn’t take off. - Source: Hacker News / about 1 year ago
A tool to solve optimization problems using quantum computers. Just released the first open-source version https://github.com/pasqal-io/maximum-independent-set/. We'll see if I have the energy to work on that. - Source: Hacker News / over 1 year ago
When comparing AngularJS and Opa, you can also consider the following products.


Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
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ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.
Compare ASP.NET to AngularJS or Opa:

A JavaScript framework for creating ambitious web apps
Compare ember.js to AngularJS or Opa:

Give your JS App some Backbone with Models, Views, Collections, and Events
Compare Backbone.js to AngularJS or Opa: