我有两个对象的动态数组，如下所示（这是一个包含n个对象的动态数组）：
1
946serverArray = [
{"id":"field1","mandatory":false,"visible":false},
{"id":"field2","mandatory":false,"visible":false},
{"id":"field3","mandatory":false,"visible":false},
{"id":"field4","mandatory":false,"visible":false}
]
localArray = [
{"id":"field1"},
{"id":"field2","mandatory":false},
{"id":"field3","mandatory":true,"visible":false},
{"id":"field4","mandatory":false,"visible":true},
{"id":"field5","mandatory":false,"visible":true},
{"id":"field6","mandatory":true,"visible":false},
]
我将这两个数组合并为具有相同ID的对象，如下所示：
for (let x = 0; x < serverArray.length; x++) {
for (let y = 0; y < localArray.length; y++) {
if (serverArray[x].id == localArray[y].id) { // serverArray[x].id/localArray[y].id = 'field1', 'field2'
for (let key in localArray[y]) { //key = 'id', 'mandatory', etc
serverArray[x][key] = localArray[y].hasOwnProperty(key) ? localArray[y][key] : serverArray[x][key]; //Override with local field attribute value (if present) in final returned response
}
}
}
}
然而，我还希望在最终的serverArray中包含那些不在serverArray中的ID（即上面示例中的field5，field6），并且这些字段也会失败上述条件（即serverArray[x].id == localArray[y].id），我希望这些字段也作为最终serverArray的一部分，即在我的最终serverArray中还应包含以下两个对象：
{"id":"field5","mandatory":false,"visible":true},
{"id":"field6","mandatory":true,"visible":false},
有没有办法实现这个要求？
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在循环遍历两个数组时，您可以创建一个新对象来跟踪合并的字段。在初始合并之后，您可以再次遍历localArray，以识别尚未合并到serverArray中的字段，并将它们添加到合并结果中。
let mergedFields = {}; // 根据共同的ID进行初始合并 for (let y = 0; y < localArray.length; y++) { const localField = localArray[y]; const serverField = serverArray.find(field => field.id === localField.id); if (serverField) { mergedFields[localField.id] = { ...serverField, ...localField }; } else { mergedFields[localField.id] = localField; } } // 添加在mergedFields中不存在的剩余localArray字段 for (let y = 0; y < localArray.length; y++) { const localField = localArray[y]; if (!mergedFields.hasOwnProperty(localField.id)) { mergedFields[localField.id] = localField; } } // 将mergedFields对象转换回数组 const mergedServerArray = Object.values(mergedFields); console.log(mergedServerArray);