What is the difference rows and flatRows?

[xkomiks]

export interface RowModel {
rows: Row[]
flatRows: Row[]
rowsById: Record<string, Row>
}

[nktnet1]

As of v8, see https://tanstack.com/table/v8/docs/guide/row-models

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Row Model Data Structure

Each row model will provide you the rows in 3 different useful formats:

• rows - An array of rows.
• flatRows - An array of rows, but all sub-rows are flattened into the top level.
• rowsById - An object of rows, where each row is keyed by its id. This is useful for quickly looking up rows by their id with better performance.

console.log(table.getRowModel().rows) // array of rows
console.log(table.getRowModel().flatRows) // array of rows, but all sub-rows are flattened into the top level
console.log(table.getRowModel().rowsById['row-id']) // object of rows, where each row is keyed by its `id`