基于相同的键和值合并两个对象数组

function mergeArrays(arr1, arr2) {
  arr1.forEach(obj1 => {
    const matchingObj = arr2.find(obj2 => obj2.key === obj1.key && obj2.value === obj1.value);
    if (matchingObj) {
      Object.assign(obj1, matchingObj);
    } else {
      arr2.push(obj1);
    }
  });
  return arr2;
}

// 示例用法
const array1 = [
  { key: 'name', value: 'John' },
  { key: 'age', value: 25 }
];
const array2 = [
  { key: 'name', value: 'Jane', gender: 'female' },
  { key: 'city', value: 'New York' }
];

const mergedArray = mergeArrays(array1, array2);
console.log(mergedArray);