Getting started

  1. How KO works and what benefits it brings
  2. Downloading and installing

Observables

  1. Creating view models with observables
  2. Using computed observables
  3. Working with observable arrays

Bindings

Controlling text and appearance

  1. The visible binding
  2. The text binding
  3. The html binding
  4. The css binding
  5. The style binding
  6. The attr binding

Control flow

  1. The foreach binding
  2. The if binding
  3. The ifnot binding
  4. The with binding

Working with form fields

  1. The click binding
  2. The event binding
  3. The submit binding
  4. The enable binding
  5. The disable binding
  6. The value binding
  7. The hasFocus binding
  8. The checked binding
  9. The options binding
  10. The selectedOptions binding
  11. The uniqueName binding

Rendering templates

  1. The template binding

Binding syntax

  1. The data-bind syntax
  2. The binding context

Creating custom bindings

  1. Creating custom bindings
  2. Controlling descendant bindings
  3. Supporting virtual elements

Further techniques

  1. Loading and saving JSON data
  2. Extending observables
  3. The throttle extender
  4. Unobtrusive event handling
  5. Using fn to add custom functions

Plugins

  1. The mapping plugin

More information

  1. Browser support
  2. Getting help
  3. Links to tutorials & examples
  4. Usage with AMD using RequireJs (Asynchronous Module Definition)

Downloads

Get the latest stable production build of Knockout.js:

Download: Production

v2.3.0 - 15kb min+gz

Download: Prerelease

v3.0 release candidate - details

Also available: debug build. Note: This is only intended to help you understand how Knockout works. Don't use it for normal application development, because it exposes additional unsupported private APIs.

Installation

Simply reference the JavaScript file using a <script> tag somewhere on your HTML pages. For example,

<script type='text/javascript' src='knockout-2.3.0.js'></script>

Of course, update the src attribute to match the location where you put the downloaded file. Next, if you’re new to Knockout, get started with interactive tutorials, see some live examples, or dig into documentation about observables.

Content Delivery Networks (CDNs)

To give your users the fastest download speeds, you might instead prefer to reference knockout.js on one of the following third-party CDNs:

Archive of all versions

  • jquery.tmpl (debug) — the old jQuery Templates plugin sometimes used with older versions of Knockout.js. This approach to templating has been deprecated since Knockout v2.0.0.
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