At first I assumed this feature didn't exist, because it's missing in the TypeScript definitions, but after digging around in the source code it seems that a GlyphSet should indeed be iterable:

https://github.com/opentypejs/opentype.js/blob/master/src/glyphset.mjs#L47-L61

Expected Behavior

I should be able to iterate over a GlyphSet, for example using spread syntax, or using a for...of loop.

Current Behavior

Throws, despite [Symbol.iterator] apparently being set.

TypeError: <GlyphSet> is not iterable

Steps to Reproduce

1. Load a font, and try to iterate over the glyphs property.
2. TypeError: <GlyphSet> is not iterable should be thrown.

Your Environment

• Version used: 1.3.4
• Browser Name and version: Chrome 129.0.6668.101
• Operating System and version (desktop or mobile): Win 11 64-bit