How to used changedKeys?

[chiester]

I'm not clear on how to use changedKeys? I have a fairly basic form but in some cases, I want to know which keys in the model were changed and conditionally do different things. None of my fields are custom components, so it doesn't seem like using the hooks is an option.

Might be thinking of changed instead of changedKeys

[radekmie]

Hi @chiester. What do you mean by using changed instead of changedKeys?

• changed is a context property, telling whether or not any of the fields have changed (docs).
• changedKeys is a helper (docs), used internally to calculate changedMap (docs).

I guess that you may want to use changedMap instead. It's how uniforms calculate the changed property of every field (useField call). A field is changed if !!get(changedMap, name) (get is a Lodash function).