Scripting resources
InDesign
InDesign JavaScript reference — version 16.0
InDesign Server JavaScript reference — version CC 2019 (14.0.0.130)
InDiScripts — site published by Marc Autret, developer and graphic designer at StudioEditorial (France).
InDesign snippets — a blog by Marijan Tompa, a graphic designer from Subotica (Serbia).
Dave Saunders' JavaScripting InDesign blog.
If you are serious about scripting you should use Rorohiko's Active Page Item Developer (APID) Toolkit.
Check out Bob Stucky's Creative Scripting blog.
Photoshop
Photoshop JavaScript reference (version CC 2015.5)
Xtools is a JavaScript toolkit that facilitates scripting Adobe Photoshop Photoshop has supported scripting since version 7.0 of the product. Each new version adds more and more capabilities for scripters.
www.ps-scripts.com — forums, articles, sample codes, tips and tricks on Photoshop scripting.
Acrobat
Beginning JavaScript for Adobe Acrobat by John Deubert
Tutorials: Enhance PDF using JavaScript
Developing Acrobat Applications Using JavaScript
JavaScript for Acrobat API Reference
Acrobat Javascript Samples Scripts on EverMap
Tutorials on AcrobatUsers.com
JavaScript
My favorite JavaScript Reference.
Visual Studio Code
ExtendScript Debugger for Visual Studio Code Public Release
ExtendScript Debugger Extension for Visual Studio Code
Using the VSCode/ExtendScript Debugger by Kris Coppieters
ExtendScript Toolkit (ESTK)
You can download ESTK both for Mac and Windows from here
jQuery
jQuery Cheat Sheet for Beginners — by Nick Schäferhoff — makes work a whole lot easier for avid jQuery developers and it may be one of, if not the most comprehensive one on the internet because he literally put together 13 pages (that anyone download as a PDF document for FREE) covering things such as selectors, Attributes / CSS, manipulation, traversing, and much much more that your audience can benefit from right away.
GREP
Developer Centers
Creative Suite Developer Center
Libraries and Frameworks
UXP
Adobe UXP: Things you need to know! by Davide Barranca
Adobe UXP Plugin Tutorial by NT Productions
Adobe UXP Introduction by Adobe Developers
Alchemist plug-in by Jaroslav Bereza
Adobe Creative Cloud Libraries
The Adobe Creative Cloud Libraries API Is Available Now!
Creative Cloud Libraries API documentation
CEP Extensions
Getting Started with CEP Extensions
Scripting CC Apps Using CEP Panels
Change as a Way of Life: CC Extensions and the Third-Party InDesign Developer by Olav Martin Kvern
CEP tEB dev tools by Tomasz Mnich. Here is the tutorial.
Uncategorized
Online ScriptUI dialog builder by Joonas Pääkkö — the offline version is here.