Knockout.js is an open source JavaScript framework that gives opportunity to build rich and dynamic user interfaces. This standalone library separates domain data, view components and data to be displayed, synchronizing them at the same time. Relations between view components are specified by simple syntax that ensures responsive and rich user experience.
Knockout.js and View Models
Knockout.js applies Model-View-View-Model (MVVM) pattern for user interfaces development.
According to this pattern complex UI is divided into the three elements:
- A model contains data stored in application and is UI-independent.
- A view model (VM) comprises JavaScript objects and code representation of all data and operations performed on a UI. It is dynamic, since it holds even unsaved data the user is currently working on.
- A view is a visible user interface that represents the current state of the view model, sends commands to it and synchronizes with it.
The main features of Knockout.js:
Declarative bindings
Concise and extensible set of simple two-way declarative bindings, that easily link model data to the DOM elements, provide more productive development.
Automatic UI refresh
View models are created using observables. Observables are the model elements that ensure binding with the respective display feature in the interface. Knockout.js implicitly detects changes in observables and synchronizes UI with an underlying data model.
Dependency tracking
Knockout.js automatically tracks dependencies and establishes them by means of two-way data bindings and observables.
Templating
The more complex application is, the more complicated code becomes. Templates are the best code optimization solution. Knockout.js has native, built-in template engine that is ready for use to generate complex UI.
Extensibility and compatibility
Knockout works with any existing web framework and every mainstream browser, although the best it works in combination with jQuery basing on the jQuery.tmpl template system.
Interested in Knockout.js?
With Knockout.js it is easy to provide quick data transmitting and receiving, code support and improvement due to the simplicity of declarative binding syntax and separation patterns (such as MVVM) integration.
Contact Quintagroup and we will offer rich and responsive UI solution for your project.