Data display

Before/After Code Diff

Before/After Code Diff: Two code panels side by side, labeled before and after, with added and removed lines tinted and a hover focus effect.

currency.tsbefore

export function formatPrice(cents) {  var dollars = cents / 100  var rounded = dollars.toFixed(2)  return '$' + rounded} export function formatList(items) {  return items.map(formatPrice).join(', ')}

currency.tsafter

export function formatPrice(cents: number, currency = "USD") {  const value = cents / 100  return new Intl.NumberFormat("en-US", {    style: "currency",    currency,  }).format(value)} export function formatList(items: number[]) {  return items.map((c) => formatPrice(c)).join(", ")}

Using Before/After Code Diff

Before/After Code Diff uses the wide preview frame with a dark theme setting.

Customize the preview

These controls are passed to the demo. Defaults and limits describe the preview; consult the implementation for its full prop API.

Control	Type	Default	Preview limits
`accent`	`color`	`#38BDF8`	No additional limit in the metadata.
`fontSize`	`number`	`13`	From 11 to 16; step 1
`showLineDiff`	`boolean`	`true`	No additional limit in the metadata.
`focusBlurOnHover`	`boolean`	`true`	No additional limit in the metadata.

Which frameworks are available for Before/After Code Diff?

Before/After Code Diff is available for React, Vue, Svelte, Astro, HTML. The live preview uses React; the source observations below apply to index.tsx. Check the selected port before relying on the same interactions.

What does Before/After Code Diff depend on?

The React metadata lists these npm dependencies beyond React: clsx.

What accessibility details are visible in Before/After Code Diff?

The React source for Before/After Code Diff includes: attributes and handlers (aria-hidden). These are source observations. Verify accessible names, focus order and keyboard behavior in the composed page.

How does Before/After Code Diff handle reduced motion?

The source scan found no direct useReducedMotion() or matchMedia preference read in Before/After Code Diff's index.tsx. Check the full implementation, shared styles and selected port with reduced motion enabled; these observations do not establish that every animation stops.

Connect your agent

Related open components

Still of the Animated metric counter component, a Fieldbook UI component in Data display.

2299Animated metric counterData displayA large bare numeral that springs up from a starting value to its target the moment it scrolls into view, overshooting slightly before it settles, with thousands separators and an optional suffix.

Still of the Billing Ledger Table component, a Fieldbook UI component in Data display.

2304Billing Ledger TableData displayFilter invoice statuses, sort amounts, and recalculate the visible ledger total.

Still of the Concentric goal rings component, a Fieldbook UI component in Data display.

2128Concentric goal ringsData displayThree nested progress rings that draw themselves in sequence beside a readout of each goal's current and target value.

Still of the Counting number readout component, a Fieldbook UI component in Data display.

2328Counting number readoutData displayA large stat that counts up to its value on a decelerating curve, writing the text directly each frame so the layout never jitters.

Still of the Credit balance ledger component, a Fieldbook UI component in Data display.

2856Credit balance ledgerData displayInspect account credits and apply an eligible balance to an open invoice with a ledger entry.

Still of the Detail list item component, a Fieldbook UI component in Data display.

2140Detail list itemData displayA list row combining a leading icon or avatar, a title and description, and a trailing action, for notification lists, menus, or settings rows.