Smooth 60fps Table Resizing: Inside Tablesmit's Drag Implementation

Table resizing seems simple but becomes complex at scale—naive implementations cause layout thrashing on every pixel of drag movement, creating visible lag especially on lower-powered devices. Tablesmit solves this with requestAnimationFrame and a ghost line indicator, deferring layout recalculation until the drag completes, delivering consistent 60fps performance regardless of table size. This approach demonstrates how thoughtful interaction design can transform basic features into genuinely delightful user experiences.