I wonder what you think about this...

This change allows one to not include the JavaScript types from this library but use the builtin / latest TypeScript ES5 types.

Of course, shimming will still have to be done manually when going this route.

At the moment I am using this: https://github.com/adobe-extension-tools/extendscript-es5-shim-ts
Which also includes type definitions of ES5, but those are copy / pasted from TypeScript a while ago, and I noticed that they have become a bit outdated and are missing some things.

The advantage of this approach is that the types are kept up to date by TypeScript, by default, we can still advise to use "noLib" and include the "JavaScript" types from this package (see updated README).

Try it out:

# create new folder
mkdir my-script
cd my-script

# install types-for-adobe
npm init -y
npm i github:vespakoen/types-for-adobe#optional-javascript

# create tsconfig.json
printf '{"compilerOptions":{"module":"none","lib": ["ES5"], "types": ["types-for-adobe/Illustrator/2015.3", "types-for-adobe/PlugPlugExternalObject"],}}' > tsconfig.json

# create index.ts and write typed code!
printf 'alert(String(app));\n' > index.ts

# compile typescript files
tsc

This is built on top of PR #80