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Number Ticker

Number Ticker is a React and Tailwind CSS text component from Magic UI, licensed MIT. Copy it and paste it into your project.

Magic UI MIT text

What it is

Number Ticker is a React and Tailwind CSS text component from Magic UI, licensed MIT. Copy it and paste it into your project.

How to use it

Open it in the catalogue, press copy, and paste it into your project. The prompt you copy carries the code and the rules that tell your agent to reproduce it without changing anything.

Open in the catalogue

Five free copies a month. No card.

Needs

npm i motion

Licence

This component comes from Magic UI and is redistributed under the MIT licence, which permits commercial use. The copyright notice travels with the code.

Number Ticker

registry/magicui/number-ticker.tsx
"use client"

import { useEffect, useRef, type ComponentPropsWithoutRef } from "react"
import { useInView, useMotionValue, useSpring } from "motion/react"

import { cn } from "@/lib/utils"

interface NumberTickerProps extends ComponentPropsWithoutRef<"span"> {
  value: number
  startValue?: number
  direction?: "up" | "down"
  delay?: number
  decimalPlaces?: number
}

export function NumberTicker({
  value,
  startValue = 0,
  direction = "up",
  delay = 0,
  className,
  decimalPlaces = 0,
  ...props
}: NumberTickerProps) {
  const ref = useRef<HTMLSpanElement>(null)
  const motionValue = useMotionValue(direction === "down" ? value : startValue)
  const springValue = useSpring(motionValue, {
    damping: 60,
    stiffness: 100,
  })
  const isInView = useInView(ref, { once: true, margin: "0px" })

  useEffect(() => {
    let timer: ReturnType<typeof setTimeout> | null = null

    if (isInView) {
      timer = setTimeout(() => {
        motionValue.set(direction === "down" ? startValue : value)
      }, delay * 1000)
    }

    return () => {
      if (timer !== null) {
        clearTimeout(timer)
      }
    }
  }, [motionValue, isInView, delay, value, direction, startValue])

  useEffect(
    () =>
      springValue.on("change", (latest) => {
        if (ref.current) {
          ref.current.textContent = Intl.NumberFormat("en-US", {
            minimumFractionDigits: decimalPlaces,
            maximumFractionDigits: decimalPlaces,
          }).format(Number(latest.toFixed(decimalPlaces)))
        }
      }),
    [springValue, decimalPlaces]
  )

  return (
    <span
      ref={ref}
      className={cn(
        "inline-block tracking-wider text-black tabular-nums dark:text-white",
        className
      )}
      {...props}
    >
      {startValue}
    </span>
  )
}

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