Where are attribute expressions documented?

[SkillsPlanet]

I need some documentation. Do you cover anywhere this stuff?

These are valid:

<Text Value="{tag}" />

<Text Value="{tag+’!’}" />

<Text Value="{tag+tag}" />

These are NOT valid:

<Text Value="{tag.toUpperCase()}" />

<Text Value="{myFn(tag)}" />

[Uldis]

All available UX expressions are covered here: https://www.fusetools.com/docs/ux-markup/expressions