我有一个对象数组:
const arr = [
{
"topicId": 1,
"topicName": "Topic 1",
"topicIcon": {
"name": "Caret",
"class": "lmnicon lmnicon-caret-right"
},
"topicContent": "T1 topic content",
"children": [
{
"topicId": 4,
"topicName": "Topic 4",
"topicIcon": {
"name": "Caret",
"class": "lmnicon lmnicon-caret-right"
},
"topicContent": "T4 topic content"
},
{
"topicId": 5,
"topicName": "Topic 5",
"topicIcon": {
"name": "Caret",
"class": "lmnicon lmnicon-caret-right"
},
"children": [
{
"topicId": 6,
"topicName": "Topic 6",
"topicIcon": {
"name": "Caret",
"class": "lmnicon lmnicon-caret-right"
}
},
{
"topicId": 7,
"topicName": "Topic 7",
"topicIcon": {
"name": "Caret",
"class": "lmnicon lmnicon-caret-right"
}
},
{
"topicId": 8,
"topicName": "Topic 8",
"topicIcon": {
"name": "Caret",
"class": "lmnicon lmnicon-caret-right"
}
},
]
}
]
},
{
"topicId": 2,
"topicName": "Topic 2",
"topicIcon": {
"name": "Caret",
"class": "lmnicon lmnicon-caret-right"
},
"topicContent": "T2 topic content",
"children": [
{
"topicId": 9,
"topicName": "Topic 9",
"topicIcon": {
"name": "Caret",
"class": "lmnicon lmnicon-caret-right"
}
},
{
"topicId": 10,
"topicName": "Topic 10",
"topicIcon": {
"name": "Caret",
"class": "lmnicon lmnicon-caret-right"
}
}
]
}
]
const mapHeirarchy = list => list.flatMap(({ topicId, topicName, topicIcon, children = [] }) => {
const obj = {
'topicId': topicId,
'topicName': topicName,
'topicIcon': topicIcon,
'droppable': true, //add this
'draggable': true //add this
}
return [obj, ...mapHeirarchy(children)]
});
console.log(mapHeirarchy(arr))我需要在对象和嵌套子对象中添加这两个属性droppable和draggable，因为它们可能有‘n’层深.
虽然我添加了属性，但我需要回到原来的‘arr’ struct .
我不确定我们如何才能回到过go ，或者有更正确的方法来实现这一点.