JavaScript OSA

JavaScript OSA, (originally JavaScript for OSA, abbreviated as JSOSA), is a freeware inter-process communication scripting language for the Macintosh computer.

JavaScript OSA uses the "core language" of the Mozilla implementation of the JavaScript programming language, (see SpiderMonkey). The language is used as an alternative to the AppleScript language. Its use is unrelated to web browser-based scripting. It can be seen as having a similar function to Microsoft's JScript .NET language on Windows machines, although there is no interoperability between the two languages' system-level scripting.


The language is identical to Mozilla's core language, with extensions added via a "Core" object and a "MacOS" object. The MacOS object has methods for obtaining objects that are bound to applications. This is done via the AppleEvent messaging system, a part of the Macintosh's Open Scripting Architecture.

The language was first released in 2001, and was bundled with Late Night Software's flagship product, Script Debugger. In May 2005, a new "alpha" version of the language was made available for testing. This improved second version of the language was bundled with version 4 of Script Debugger. JavaScript OSA was eventually discontinued due to lack of interest[1] and was dropped from Script Debugger 5 in 2012.[2]


OS X Yosemite introduced JavaScript for Automation (JXA): system-wide support for scripting with JavaScript, built upon JavaScriptCore and the Open Scripting Architecture.[3] It features an Objective-C bridge which enables entire Cocoa applications to be programmed in JavaScript.[4]


  1. ^ "Yosemite JavaScript for Automation Support". Late Night Software. Retrieved 2015. 
  2. ^ "What's New in Script Debugger 5.0". Late Night Software. Retrieved 2015. 
  3. ^ "JavaScript for Automation". MacStories. Retrieved 2014. 
  4. ^ "JavaScript for Automation Release Notes". Apple, Inc. Retrieved 2014. 

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



Connect with defaultLogic
What We've Done
Led Digital Marketing Efforts of Top 500 e-Retailers.
Worked with Top Brands at Leading Agencies.
Successfully Managed Over $50 million in Digital Ad Spend.
Developed Strategies and Processes that Enabled Brands to Grow During an Economic Downturn.
Taught Advanced Internet Marketing Strategies at the graduate level.

Manage research, learning and skills at defaultLogic. Create an account using LinkedIn or facebook to manage and organize your Digital Marketing and Technology knowledge. defaultLogic works like a shopping cart for information -- helping you to save, discuss and share.

Visit defaultLogic's partner sites below: : Music Genres | Musicians | Musical Instruments | Music Industry
NCR Works : Retail Banking | Restaurant Industry | Retail Industry | Hospitality Industry

  Contact Us