Top 5 javascript frameworks

 Here are the top 5 JavaScript frameworks :

1. React: Developed and maintained by Facebook, React is a popular JavaScript library for building user interfaces.

2. Angular: Developed and maintained by Google, Angular is a complete framework for building dynamic web applications.

3. Vue.js: A relatively new JavaScript framework, Vue.js has gained a lot of popularity in recent years for its simplicity and performance.

4. Ember.js: Ember.js is a JavaScript framework that emphasizes conventions over configuration, making it a good choice for complex web applications.

5. Backbone.js: Backbone.js is a lightweight JavaScript framework that provides structure for web applications, particularly those that need to work with a lot of data.

It's worth noting that the popularity of these frameworks can change over time, and different frameworks may be better suited for different types of projects and use cases.