Recipes
Trading Ticker
Apple Stocks-inspired ticker with animated price and change values
An Apple Stocks-inspired ticker with dual animated values — both the stock price and day change roll their digits in sync, with inline SVG sparkline charts colored by trend direction.
Notice that trendFn, priceFormat, and changeFormat are declared outside the component as stable references — creating new function/object identities every render would trigger unnecessary work inside NumberFlow. The signDisplay: 'exceptZero' format option handles the +/- prefix automatically via Intl.NumberFormat, so the sign itself becomes an animated character in the digit roll.