Emberjs

Ember.js is an open-source JavaScript framework for building ambitious web applications. It provides a complete front-end application architecture, including routing, a templating system, components, data handling via Ember Data, testing tools, and a command-line interface (Ember CLI). Apps built with Ember follow conventional project structures and rely on a stable set of patterns, aiming to reduce boilerplate and facilitate long-term maintainability.

The core concepts include an Ember router that maps URLs to routes; routes fetch model data and orchestrate state; templates render the user interface using a Handlebars-based templating system; components encapsulate UI and behavior; services provide long-lived objects to share state; and Ember Data handles data persistence with adapters and serializers. Ember CLI provides project scaffolding, build tooling, and a rich addon ecosystem.

Ember supports modern rendering with the Octane edition, which introduced native JavaScript class syntax, tracked properties, and Glimmer components with angle-bracket invocation, while remaining backward compatible with earlier patterns. The framework remains opinionated and emphasizes conventions over configuration.

Since its inception in 2011, Ember originated from the SproutCore project and has grown through community-driven development. It is maintained by a core team and an open community, with regular releases that prioritize stability, semantic versioning, and long-term compatibility.