React: Each child in a list should have a unique "key" prop
Categories:
- Adventures in Gutenberg
- Don't Program Tired
I was getting this error seemingly out of the blue, and none of the usual search results made sense: I wasn't trying to make a list. Turns out, I'd improperly passed a doubly-nested child array to React.createElement(). A la: createElement( "div", divProps, aChild, moreChildren ); Where moreChildren was an array of nodes I'd made earlier. […]
