lattice-form: getItem(name).get("{prop}") is...

Warnings reference › form.item.get.unknown:*

Identifier

form.item.get.unknown:*

Raised by

form

Since

1.104.0

What happened

getItem(name).get(prop) reads back the effective value of a prop set() accepts. A prop the item does not carry (misspelled, or simply not one of its own) has no effective value to report, so undefined is returned rather than guessing.

The fix

Check the prop name against the props set() on this item documents as live.

The smallest fix

form.getItem('city').get('placeholder');

Reference

Covered in full at the API reference.