Chakra (JavaScript engine)

This article is about the JavaScript engine used in Microsoft Edge. For the JavaScript engine used in Internet Explorer 9 through 11, see Chakra (JScript engine). For other uses, see Chakra (disambiguation).

Chakra

Developer(s)	Microsoft
Development status	Active
Operating system	Microsoft Windows
Type	JavaScript engine
License	Proprietary

Chakra is a JavaScript engine developed by Microsoft for its Microsoft Edge web browser. It is a fork of the JScript engine used in Internet Explorer. Like the Edge layout engine and unlike previous versions in Internet Explorer the declared intention is that it will reflect the "Living Web". On December 5th of 2015, it was announced that core components of Chakra will be open-sourced as ChakraCore.

Standards support

Chakra supports ECMAScript 5.1 with partial support for ECMAScript 6.

Open Sourcing

On December 5th 2015, Microsoft announced plans to open source the Chakra engine as ChakraCore, which will include all the key components of the JavaScript engine powering Microsoft Edge on their Github page under the MIT license in January 2016. ChakraCore is essentially the same as the Chakra engine that powers the Microsoft Edge browser, but with platform-agnostic bindings, i.e. without the specific interfaces utilised within the Windows Universal App platform. On January 13, 2016 Microsoft released as promised ChakraCore under the MIT license on GitHub.

See also

• Microsoft Edge
• JavaScript engine
• JScript
• Chakra (JScript engine)
• ECMAScript
• List of ECMAScript engines

External links

• Official website
• ‹The template Official websites is being considered for deletion.› Official websites for Samples, Node with Chakra