src useCounter.ts

100% Statements 10/10

100% Branches 1/1

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  import { useCallback, useState } from "react";
 
/**
 * A simple counter hook
 * @param initialValue - Initial counter value (default: 0)
 */
export function useCounter(initialValue: number = 0) {
  const [count, setCount] = useState(initialValue);
 
  const increment = useCallback(() => {
    setCount((prev) => prev + 1);
  }, []);
 
  const decrement = useCallback(() => {
    setCount((prev) => prev - 1);
  }, []);
 
  const reset = useCallback(() => {
    setCount(initialValue);
  }, [initialValue]);
 
  return { count, increment, decrement, reset };
}