tailwind-merge

tailwind-merge is a utility to merge Tailwind class strings, resolving conflicts (e.g., p-4 p-2 -> p-2) for conditional styling without duplicates.

Essential for dynamic classes.

Use tailwind-merge when:

• Conditional Tailwind props.
• Component libraries.
• Avoiding class bloat.
• shadcn/ui setups.

Note: twMerge('p-4 md:p-2 active:p-1').

Chain with clsx.

ESLint no-dupe.