the diff `keyOf` threw; the row was skipped.

Warnings reference › diff.keyOf.throw

Identifier

diff.keyOf.throw

Raised by

The grid (core)

Since

1.0.1

What happened

The diff's key function threw for a row, so that row has no identity and is left out of the comparison entirely - it is neither an addition, a change nor a removal.

The fix

The error is attached to the console line. keyOf must tolerate every row in the snapshot, including ones that predate a schema change.

Reference

Covered in full at the API reference.