React取多个数组中多个值的平均值

const arrays = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
const mergedArray = [].concat(...arrays);
const sum = mergedArray.reduce((acc, val) => acc + val, 0);
const average = sum / mergedArray.length;

console.log(average);

import React from 'react';

const AverageCalculator = ({ arrays }) => {
  const mergedArray = [].concat(...arrays);
  const sum = mergedArray.reduce((acc, val) => acc + val, 0);
  const average = sum / mergedArray.length;

  return <div>Average: {average}</div>;
};

export default AverageCalculator;

import React from 'react';
import AverageCalculator from './AverageCalculator';

const App = () => {
  const arrays = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];

  return (
    <div>
      <h1>Calculate Average</h1>
      <AverageCalculator arrays={arrays} />
    </div>
  );
};

export default App;