Use when the column value is directly available as a property.
Because functions cannot be used as unique identifiers, you must manually provide a unique id property when using a functional accessor. 2. Version Differences: v7 vs. v8 (TanStack) Columns Guide | TanStack Table Docs react table accessor
Here’s a concise, technical write‑up explaining (specifically for react‑table v7, the most common version using hooks). Use when the column value is directly available
A function that receives the entire row object and returns the value to be used. react table accessor