Reactjs: Key undefined when accessed as a prop

Question

Tools: Reactjs 0.14.0 Vanilla Flux

I need unique identifiers for 2 reasons:

1. Child Reconciliation
2. Keeping track of what child

Answer 1

key and ref aren't really 'props'. They're used internally by react and not passed to components as props. Consider passing it as a prop such as 'id'.