通过两个具有不同键的数组合并同一数组中的对象

function mergeArrays(arr1, arr2) {
  var mergedArray = [];

  // 遍历第一个数组
  arr1.forEach(function(obj1) {
    var mergedObj = obj1;
    var matchingObj = arr2.find(function(obj2) {
      return obj2.key === obj1.key; // 检查是否存在相同键的对象
    });

    if (matchingObj) {
      mergedObj = Object.assign({}, obj1, matchingObj); // 合并两个对象
    }

    mergedArray.push(mergedObj);
  });

  // 遍历第二个数组
  arr2.forEach(function(obj2) {
    var matchingObj = arr1.find(function(obj1) {
      return obj1.key === obj2.key; // 检查是否存在相同键的对象
    });

    if (!matchingObj) {
      mergedArray.push(obj2);
    }
  });

  return mergedArray;
}

// 示例用法
var array1 = [
  { key: 'a', value1: 'foo' },
  { key: 'b', value1: 'bar' },
  { key: 'c', value1: 'baz' }
];

var array2 = [
  { key: 'b', value2: 'qux' },
  { key: 'd', value2: 'quux' }
];

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

[
  { key: 'a', value1: 'foo' },
  { key: 'b', value1: 'bar', value2: 'qux' },
  { key: 'c', value1: 'baz' },
  { key: 'd', value2: 'quux' }
]