Sortable data table

Description

Implement a data table with sortable Name, Score, and Updated columns. Sorting must be stable, communicate direction to assistive technology, and preserve selected rows through checkboxes named Select <name>.

Requirements

Rows and sortable column headers are rendered with semantic table elements.
Each sortable header can be activated with either a pointer or the keyboard.
Rows with equal values retain their prior relative order after sorting.
Only the active sort header exposes the current ascending or descending aria-sort value.
Selected row IDs remain selected when sorting changes their visible positions.
Sorting and selection do not mutate the caller-provided rows array or row objects.

Stable sorting

Input

Sort equal scores by score descending

Expected output

Rows with equal scores retain their previous relative order

Constraints

Use semantic table elements
Expose aria-sort
Do not mutate the input rows

Hints

Hint 1

Keep sort descriptors and selected row identifiers separate from the caller-provided data.

Hint 2

Decorate rows with their original positions before applying the active column comparisons to guarantee stable ties.

Hint 3

Render sorting controls inside column headers and expose sort direction only on the currently primary header.