Software Alternatives & Reviews

KnockoutJS VS Opa

Compare KnockoutJS VS Opa and see what are their differences

KnockoutJS logo KnockoutJS

Knockout makes it easier to create rich, responsive UIs with JavaScript

Opa logo Opa

Opa is an open source, simple and unified platform for writing web applications.
  • KnockoutJS Landing page
    Landing page //
    2018-09-30
  • Opa Landing page
    Landing page //
    2021-10-16

KnockoutJS videos

KnockoutJS Review

Opa videos

My food review at Opa of Greece!

More videos:

  • Review - Classic Game Room - OPA OPA review for Sega Mark III

Category Popularity

0-100% (relative to KnockoutJS and Opa)
Javascript UI Libraries
69 69%
31% 31
Web Frameworks
0 0%
100% 100
JS Library
100 100%
0% 0
Developer Tools
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, KnockoutJS should be more popular than Opa. It has been mentiond 21 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

KnockoutJS mentions (21)

  • A First Look at HTMX and How it Compares to React
    The approach is not new, essentially a variation of Knockout, Alpine, and similar "JS-in-HTML" approaches. - Source: dev.to / 8 months ago
  • The Best UI Libraries for Cross-Platform Apps with Tauri
    SolidJS and Tauri form another potent combination for creating performant, lightweight, and secure experiences. SolidJS is a reactive UI library that is similar to Svelte in the way it compiles away reactivity and updates the DOM directly, but it also incorporates a fine-grained reactivity system reminiscent of libraries like Marko, Knockout, and MobX. - Source: dev.to / 9 months ago
  • Why are signals still not so popular?
    People act like Signals are a new discovery. KnockoutJS was using them 13 years ago and other libraries used them before that. Source: 10 months ago
  • What is KnockoutJS and how is it relevant in Magento 2?
    Knockout JS is a Javascript library which uses the MVVM pattern to bind data to certain DOM elements. Within Magento, we usually define a View-Model (which is a .js file) and a Template (which is a .html file), and the data in the template file is bound to the view-model, meaning whenever the data in the view-model changes, the template file changes too. Source: 11 months ago
  • Alpine.js
    I still use Knockout[0] for almost an identical experience. 0: https://knockoutjs.com/. - Source: Hacker News / over 1 year ago
View more

Opa mentions (3)

  • Imba – The friendly full-stack language
    I remember Opa http://opalang.org/ tried something similar at the time when MongoDB was new and modern. - Source: Hacker News / 8 months ago
  • Ask HN: What web frameworks/technologies did not succeed as per your expectation
    We come across some web frameworks and technologies that we think will succeed, but they wither away as time passes by and don't succeed to the level we expected. Which web frameworks and or technologies did you come across that you thought would succeed but did not as per your expectations? For example, I thought that Opa Lang[0] and UrWeb[1] would succeed but did not, even though the ideas were sound. [0]... - Source: Hacker News / 10 months ago
  • Modern JavaScript:Everything you missed over the last 10 years(ECMAScript 2020)
    I think the Opa language was doing JSX-like code in the frontend before JSX http://opalang.org/ Both Opa and JSX were created in 2011. Opa had other innovations as well, such having the same code base run on both client and server (like Next.js). Unfortunately it didn't get traction and was abandoned by the creators. - Source: Hacker News / almost 3 years ago

What are some alternatives?

When comparing KnockoutJS and Opa, you can also consider the following products

AngularJS - AngularJS lets you extend HTML vocabulary for your application. The resulting environment is extraordinarily expressive, readable, and quick to develop.

Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...

Vue.js - Reactive Components for Modern Web Interfaces

ASP.NET - ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.

Svelte - Cybernetically enhanced web apps

ember.js - A JavaScript framework for creating ambitious web apps