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$ curl repovive.com/roadmaps/frontend-system-design-interview-prep/spreadsheet-design/cell-selection

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$ curl repovive.com/roadmaps/frontend-system-design-interview-prep/spreadsheet-design/cell-selection

Repovive

Cell Selection - Spreadsheet Design | Frontend System Design Interview Prep | Repovive

Repovive.

Frontend System Design Interview Prep17 sections · 206 units12h total

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Cell Selection

Single and range selection

Selection is complex with multiple modes.

Selection types:

Single cell: Click
Range: Click and drag, or Shift+click
Multiple ranges: Ctrl/Cmd+click
Entire row/column: Click header

State:

{
  activeCell: 'B2',
  selections: [
    { start: 'A1', end: 'C3' },
    { start: 'E5', end: 'E5' }
  ]
}

Selection overlay: Render selection as a separate layer, not by styling individual cells. More efficient for large ranges.