fibonacci sequence memoization

problem.js

import { useCallback, useState } from "react";
import "./styles.css";

const fib = (numbersQuantity) => {
  var fibonacciNumbers = [1, 1];

  for (var i = fibonacciNumbers.length; numbersQuantity > i; i++) {
    console.log("Iter");
    fibonacciNumbers.push(fibonacciNumbers[i - 1] + fibonacciNumbers[i - 2]);
  }

  return [fibonacciNumbers, fibonacciNumbers[numbersQuantity - 1]];
};

// 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987

export default function App() {
  const [value, setValue] = useState(0);

  const handleClick = useCallback(() => {
    const iters = parseInt(prompt("Enter number"), 10);
    let result = -1;

    for (let i = 3; i !== iters; i++) {
      console.log("Begin");
      result = fib(i);
    }

    setValue(result);
  }, []);

  return (
    <div className="App">
      <h1>Hello CodeSandbox</h1>
      <p>{JSON.stringify(value, null, 2)}</p>
      <button onClick={handleClick}>Calculate</button>
    </div>
  );
}

solution.js

import { useCallback, useState } from "react";
import "./styles.css";

const fib = (() => {
  var fibonacciNumbers = [1, 1];

  console.log("Begin");

  return (numbersQuantity) => {
    for (var i = fibonacciNumbers.length; numbersQuantity >= i; i++) {
      console.log("Iter");
      fibonacciNumbers.push(fibonacciNumbers[i - 1] + fibonacciNumbers[i - 2]);
    }

    return [fibonacciNumbers, fibonacciNumbers[numbersQuantity - 1]];
  };
})();

// 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987

export default function App() {
  const [value, setValue] = useState(0);

  const handleClick = useCallback(() => {
    const iters = parseInt(prompt("Enter number"), 10);
    let result = -1;

    for (let i = 3; i !== iters; i++) {
      console.log("Begin");
      result = fib(i);
    }

    setValue(result);
  }, []);

  return (
    <div className="App">
      <h1>Hello CodeSandbox</h1>
      <p>{JSON.stringify(value, null, 2)}</p>
      <button onClick={handleClick}>Calculate</button>
    </div>
  );
}