Debug API — `window.GAS`

GAS exposes a deliberately small console API so anyone (users filing bug reports, contributors hacking on the script) can probe its live state from DevTools. The startup banner advertises it:

[GAS] Debug API available as window.GAS
[GAS] Try: GAS.scan()
[GAS] Try: GAS.editors()
[GAS] Try: GAS.buttons()
[GAS] Try: GAS.testButton()

Reference

Member	Type	Description
`GAS.version()`	`function → string`	Returns the current script version (`'2.3.0'`). See the note below — the exposed shape is a function, not a string property.
`GAS.gas()`	`function → Array<{name, url}>`	Copy of the `DEFAULT_GAS` emoji catalog.
`GAS.scan()`	`function → HTMLElement[]`	Forces an immediate editor scan + button injection (bypasses the 100 ms debounce). Returns detected editors.
`GAS.editors()`	`function → HTMLElement[]`	Lists candidate editors; also prints a `console.table` (index, tag, id, className, placeholder, ariaLabel, `processed`, `visible`).
`GAS.buttons()`	`function → HTMLButtonElement[]`	Lists injected toolbar buttons ([data-gas-button="true"]) with a `console.table` (index, title, `connected`).
`GAS.testButton()`	`function → HTMLElement \| null`	Opens the picker for the first visible editor, as if the toolbar button was clicked. Returns the button, or `null` (with a warning) if no visible editor/button exists.
`GAS.close()`	`function`	Closes the picker (same as pressing `Esc`).

Recipes

The button vanished after GitHub navigated — rescan:

GAS.scan();

Screenshot-ready state dump for a bug report:

GAS.version();    // '2.3.0'
GAS.editors();    // table of candidate editors
GAS.buttons();    // table of injected buttons

Smoke-test the whole flow without clicking:

GAS.testButton(); // picker should open next to the first visible editor
GAS.close();

Check the emoji catalog the picker renders:

console.table(GAS.gas());

Notes

window.GAS is the only global the script creates (everything else is trapped in the IIFE).
All methods are safe to call repeatedly; scan() and GAS.editors() are read-mostly (scan may inject missing buttons — that's its job), and dedupe is handled by injectButton.
The source object literal declares version twice — first as version: GAS_VERSION, later as version() { … }. Per JavaScript object-literal semantics the later property wins, so at runtime GAS.version is the function and the string assignment is silently overwritten (dead code upstream). Use GAS.version(); reading GAS.version without calling it gives you the function itself, not the version string.

Reference​

Recipes​

Notes​

Reference

Recipes

Notes